Problem $5-31$ Future Value of Annuities $($LO$3)$

A saving account earns an interest rate $12\mathrm{.}75\%$ per year. I need $$619,767\mathrm{.}53$ to make a down payment on a house. I can save $$18,100$ per year. How long will it take me to accumulate the $$619,767\mathrm{.}53?($Do not round intermediate calculations. Round your answer to $2$ decimal places. Use a financial calculator or Excel.$)$

years