Finding the Fourth Proportional to 78,550.24, 108,399.80 and 42,740.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,550.24 : 108,399.80 = 42,740.52 : x
2. Step 2: Convert to fraction form
   78,550.24/108,399.80 = 42,740.52/x
3. Step 3: Cross multiply
   78,550.24x = 108,399.80 × 42,740.52
4. Step 4: Simplify right side
   78,550.24x = 4,633,063,819.90
5. Step 5: Solve for x
   x = 4,633,063,819.90/78,550.24
6. Step 6: Final answer
   x = 58,982.17