PLEASE HELP $($please try to get an answer close to Ans. $$167884\mathrm{.}49)$

$5\mathrm{.}21$ Repeat Problem $2\mathrm{.}32($a$)$ for continuous compounding. Ans. $$167884\mathrm{.}49$

$2\mathrm{.}32=$ Ms$.$ Frank is planning for a $25-$year retirement period and wishes to withdraw a portion of her savings at the end of each year. She plans to withdraw $$10000$ at the end of the first year, and then to increase the amount of the withdrawal by $$1000$ each year, to offset inflation. How much money should she have in her savings account at the start of the retirement period, if the bank pays $($a$)9\text{'}10,($b$)7$:$\%,$ per year, compounded annually?