Iron Works International is considering a project that will produce annual cash flows of $38,500, $47,200, $57,900, and $23,400 over the next four years, respectively. What is the internal rate of return if the project has an initial cost of $112,500? (2) 1) 17.07% 2) 15.52% 3) 16.56% 4) 18.63% 5) 17.85%