Finding the Fourth Proportional to 78,324.15, 108,086.96 and 42,513.85

Step by Step Solution

1. Step 1: Write the proportion equation
   78,324.15 : 108,086.96 = 42,513.85 : x
2. Step 2: Convert to fraction form
   78,324.15/108,086.96 = 42,513.85/x
3. Step 3: Cross multiply
   78,324.15x = 108,086.96 × 42,513.85
4. Step 4: Simplify right side
   78,324.15x = 4,595,192,640.46
5. Step 5: Solve for x
   x = 4,595,192,640.46/78,324.15
6. Step 6: Final answer
   x = 58,668.91