3 Intersecting lines point, triangulation. I currently have 3 circles that intersect each other. At these points I create a line, although I am stumped at how I can find the point of which all 3 lines intersect?

I know the coordinate center of each circle as well as its radius and each of the lines start and end coordinate points.
I have tried following some other intersecting line posts and maths but haven't managed to fully understand the principles behind them.
Hope someone could find a solution and explain the process please?
Thanks,
Marc.

Subtracting the equations of two circles gives a linear equation.
