Okay first and fore-most, everything after you iso'd the limper with this hand seems horrible. The iso in itself is defensable, but the rest seems aweful, even with k/qs.

In terms of straight answering the question, and not talking about how you misplayed the hand, here we go:

After you 4-bet and get jammed on by two players the pot is ~104 dollars. To call, you need to put in another 36, therefore investing 36 to win 140. So, 36/140= about 25% equity you need to call here. There is also the sidepot....but that makes everything much more complicated and I can't think of an easy way to do it this second.

To pokerstove!

Okay, so i put both your opponents on a super wide range for this situation, A10s+, A/Qo+. K/Qs and 8/8+. I dont think they are ever doing this with worse, or really even very close to that range, except MAYBE some random small pairs a small % of the time.

Regardless, your equity here is 20% vs those ranges according to stove, which isnt surprsiing. 3-way, if you all had the same range you would be at 33%, but I think its safe to say k/9s is much weaker then the getting it allin pre flop range, so its safe to say you have less then 33% here, a lot less. In this specific case, which i think is going to happen a lot in this situation (you being dominated and one of them having a high pair) you have 12% equity, in this exact situation vs those hands you needed almost 9-1 odds to call here, and vs these loose ranges i suggested you need 3-1, but in reality its probably closer to 4-1

Long answer short, no in this situation you were not getting pot odds. Someone please correct me if I did this wrong because I play very little cash, and analyze it even less, but I am quite confident this was a bad all-in call pot-oods/equity wise.

As a side note, why 4b so large? You can rep just as much by going to 12 as 18 like you did, and it makes your decisions that much easier when you get jammed on.