Finding the Fourth Proportional to 216,114.86, 324,146.78 and 58,355.62

Step by Step Solution

1. Step 1: Write the proportion equation
   216,114.86 : 324,146.78 = 58,355.62 : x
2. Step 2: Convert to fraction form
   216,114.86/324,146.78 = 58,355.62/x
3. Step 3: Cross multiply
   216,114.86x = 324,146.78 × 58,355.62
4. Step 4: Simplify right side
   216,114.86x = 18,915,785,434.59
5. Step 5: Solve for x
   x = 18,915,785,434.59/216,114.86
6. Step 6: Final answer
   x = 87,526.54