[7thaccount]

My honest opinion is to avoid Prolog for most enterprise needs in favor of a regular general purpose programming language that calls out to a mathematical or constraint solver via API when the need arises. This way you get a language that is easier to learn with a strong ecosystem of libraries along with a solver that is built for your particular problem.

Prolog may excel in some niche cases that are documented out there which is fine. For the majority of cases I can think of...it is too esoteric.

Prolog is SUPER cool though as is it's history. You should definitely play with it a bit.