Finding the Fourth Proportional to 89,688.62, 123,771.15 and 49,402.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,688.62 : 123,771.15 = 49,402.56 : x
2. Step 2: Convert to fraction form
   89,688.62/123,771.15 = 49,402.56/x
3. Step 3: Cross multiply
   89,688.62x = 123,771.15 × 49,402.56
4. Step 4: Simplify right side
   89,688.62x = 6,114,611,664.14
5. Step 5: Solve for x
   x = 6,114,611,664.14/89,688.62
6. Step 6: Final answer
   x = 68,176.00