Finding the Fourth Proportional to 62,790.18, 86,625.27 and 40,123.32

Step by Step Solution

1. Step 1: Write the proportion equation
   62,790.18 : 86,625.27 = 40,123.32 : x
2. Step 2: Convert to fraction form
   62,790.18/86,625.27 = 40,123.32/x
3. Step 3: Cross multiply
   62,790.18x = 86,625.27 × 40,123.32
4. Step 4: Simplify right side
   62,790.18x = 3,475,693,428.30
5. Step 5: Solve for x
   x = 3,475,693,428.30/62,790.18
6. Step 6: Final answer
   x = 55,354.09