Finding the Fourth Proportional to 78,140.57, 107,833.82 and 42,331.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,140.57 : 107,833.82 = 42,331.46 : x
2. Step 2: Convert to fraction form
   78,140.57/107,833.82 = 42,331.46/x
3. Step 3: Cross multiply
   78,140.57x = 107,833.82 × 42,331.46
4. Step 4: Simplify right side
   78,140.57x = 4,564,762,287.15
5. Step 5: Solve for x
   x = 4,564,762,287.15/78,140.57
6. Step 6: Final answer
   x = 58,417.32