Susan and Bill Stamp want to set up a TDA that will generate sufficient interest at maturity to meet their living expenses, which they project to be $$1,400$ per month. $)$ Find the monthly payment that they would have to make into an ordinary annuity to obtain the future value of $231724\mathrm{.}14$ if their money earns

$93/4\%$

and the term is twenty$-$five years.