Finding the Fourth Proportional to 78,600.96, 108,471.58 and 42,791.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,600.96 : 108,471.58 = 42,791.56 : x
2. Step 2: Convert to fraction form
   78,600.96/108,471.58 = 42,791.56/x
3. Step 3: Cross multiply
   78,600.96x = 108,471.58 × 42,791.56
4. Step 4: Simplify right side
   78,600.96x = 4,641,668,123.86
5. Step 5: Solve for x
   x = 4,641,668,123.86/78,600.96
6. Step 6: Final answer
   x = 59,053.58