Finding the Fourth Proportional to 58,645.77, 80,931.30 and 31,788.16

Step by Step Solution

1. Step 1: Write the proportion equation
   58,645.77 : 80,931.30 = 31,788.16 : x
2. Step 2: Convert to fraction form
   58,645.77/80,931.30 = 31,788.16/x
3. Step 3: Cross multiply
   58,645.77x = 80,931.30 × 31,788.16
4. Step 4: Simplify right side
   58,645.77x = 2,572,657,084.49
5. Step 5: Solve for x
   x = 2,572,657,084.49/58,645.77
6. Step 6: Final answer
   x = 43,867.73