Finding the Fourth Proportional to 78,331.71, 108,094.83 and 42,520.95

Step by Step Solution

1. Step 1: Write the proportion equation
   78,331.71 : 108,094.83 = 42,520.95 : x
2. Step 2: Convert to fraction form
   78,331.71/108,094.83 = 42,520.95/x
3. Step 3: Cross multiply
   78,331.71x = 108,094.83 × 42,520.95
4. Step 4: Simplify right side
   78,331.71x = 4,596,294,861.69
5. Step 5: Solve for x
   x = 4,596,294,861.69/78,331.71
6. Step 6: Final answer
   x = 58,677.32