Finding the Fourth Proportional to 83,459.94, 115,138.17 and 49,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,459.94 : 115,138.17 = 49,906.50 : x
2. Step 2: Convert to fraction form
   83,459.94/115,138.17 = 49,906.50/x
3. Step 3: Cross multiply
   83,459.94x = 115,138.17 × 49,906.50
4. Step 4: Simplify right side
   83,459.94x = 5,746,143,081.11
5. Step 5: Solve for x
   x = 5,746,143,081.11/83,459.94
6. Step 6: Final answer
   x = 68,849.12