Finding the Fourth Proportional to 107,686.72, 148,605.20 and 59,937.12

Step by Step Solution

1. Step 1: Write the proportion equation
   107,686.72 : 148,605.20 = 59,937.12 : x
2. Step 2: Convert to fraction form
   107,686.72/148,605.20 = 59,937.12/x
3. Step 3: Cross multiply
   107,686.72x = 148,605.20 × 59,937.12
4. Step 4: Simplify right side
   107,686.72x = 8,906,967,705.02
5. Step 5: Solve for x
   x = 8,906,967,705.02/107,686.72
6. Step 6: Final answer
   x = 82,711.85