That's somewhat of a scary flop for AK. Ideally you should have probably bet out 3/4-full pot on the flop, and folded (though not literally, but mentally,) immediately to a raise.

Think about the pf -> turn action. You raised pf and had three callers. That's bad news #1.

Bad News #2: You made a weakish bet the flop, and get raised AND called behind you. All three of you can see that yes, there is a King on the board, and the other two agree that they can contend with it, or beat it.

Now, what hand ranges do you think you can beat? Possible holdings for the villains are (judging from pf action) JJ-on down, AK, AQ, or AJ.

Post flop action narrows these ranges to AK, flushdraw, AQ, JJ or 1010, three of which have you beat, one of which you split with, and only one option that you're ahead of.

Turn pairs the board, gives you trips, but villain seems to welcome it.

Easy fold, in my opinion.