Answer:
The formula for ordinary interest is:
I = P * r * t
where:
I = the interest
P = the principal
r = the interest rate per year
t = the time in years
In this case, the principal is $12,500, the interest rate is 4%, and the time is 292/360 years (since there are 360 days in a year according to the problem statement). Therefore, we have:
t = 292/360 = 0.811111111
I = 12500 * 0.04 * 0.811111111 = 405.5555555
To find the maturity value, we add the interest to the principal:
M = P + I = 12500 + 405.5555555 = 12905.56
Therefore, the maturity value of the promissory note is $12,905.56 rounded to the nearest cent.