To solve for $x$, I'll need to know the specific context of the problem. Typically, for such problems, we might have a right triangle, and the value of $x$ could be related to the lengths of the sides of the triangle, using the Pythagorean theorem.

Could you please provide more details, such as the side lengths of the triangle or any relevant equations? This will help me find $x$ and check if the side lengths form a Pythagorean triple.