Finding the Fourth Proportional to 55,545.38, 76,572.89 and 39,602.15

Step by Step Solution

1. Step 1: Write the proportion equation
   55,545.38 : 76,572.89 = 39,602.15 : x
2. Step 2: Convert to fraction form
   55,545.38/76,572.89 = 39,602.15/x
3. Step 3: Cross multiply
   55,545.38x = 76,572.89 × 39,602.15
4. Step 4: Simplify right side
   55,545.38x = 3,032,450,877.70
5. Step 5: Solve for x
   x = 3,032,450,877.70/55,545.38
6. Step 6: Final answer
   x = 54,594.12