Finding the Fourth Proportional to 83,815.86, 115,658.89 and 49,355.12

Step by Step Solution

1. Step 1: Write the proportion equation
   83,815.86 : 115,658.89 = 49,355.12 : x
2. Step 2: Convert to fraction form
   83,815.86/115,658.89 = 49,355.12/x
3. Step 3: Cross multiply
   83,815.86x = 115,658.89 × 49,355.12
4. Step 4: Simplify right side
   83,815.86x = 5,708,358,560.78
5. Step 5: Solve for x
   x = 5,708,358,560.78/83,815.86
6. Step 6: Final answer
   x = 68,105.94