You have just inherited $$520,000.$ You plan to save this money and continue to live off the money that you are earning in your current job. If you can invest at an interest rate of $4\mathrm{.}72$ percent annually, how long will it be before your inheritance is worth $$1$ million? $($Round intermediate calculations to $5$ decimal places, e$.$g$.2\mathrm{.}51251$ and final answer to $2$ decimal places, e$.$g$.2,515\mathrm{.}25.)$

Inheritance will be worth $$1$ million in