Cooper Corporation must evaluate two capital expenditure proposals. Cooper's hurdle rate is $10\%.$ Data for the two proposals follor

$\backslash$table$[[,$Proposal X$,$Proposal Y$],[$Required investment,$170,000,170,000],[$Annual after$-$tax cash inflows,$37,000,],[$After$-$tax cash inflows at the end of years $3,6,9,$ and $12,,109,000],[$Life of project,$12$ years,$12$ years$]]$

What is the internal rate of return for Proposal X$?$ For Proposal Y$?$

Use Excel to compute your answers.

Round answers to the nearest whole percentage $($ex: $0\mathrm{.}1854=19\%)$