Answer
$t^4-22t^3+169t^2-327t-1032=0$
Work Step by Step
Given: $F(t)=12t^4-264t^3+2028t^2-3924t+43916$
The number of travelers needs to be equal to $56300$:
$12t^4-264t^3+2028t^2-3924t+43916=56300\\
12t^4-264t^3+2028t^2-3924t-12384=0\\
t^4-22t^3+169t^2-327t-1032=0$
A polynomial equation can be: $t^4-22t^3+169t^2-327t-1032=0$