Finding the Fourth Proportional to 89,688.87, 123,771.50 and 49,402.81

Step by Step Solution

1. Step 1: Write the proportion equation
   89,688.87 : 123,771.50 = 49,402.81 : x
2. Step 2: Convert to fraction form
   89,688.87/123,771.50 = 49,402.81/x
3. Step 3: Cross multiply
   89,688.87x = 123,771.50 × 49,402.81
4. Step 4: Simplify right side
   89,688.87x = 6,114,659,650.90
5. Step 5: Solve for x
   x = 6,114,659,650.90/89,688.87
6. Step 6: Final answer
   x = 68,176.35