Finding the Fourth Proportional to 89,687.88, 123,769.42 and 49,401.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,687.88 : 123,769.42 = 49,401.75 : x
2. Step 2: Convert to fraction form
   89,687.88/123,769.42 = 49,401.75/x
3. Step 3: Cross multiply
   89,687.88x = 123,769.42 × 49,401.75
4. Step 4: Simplify right side
   89,687.88x = 6,114,426,285.12
5. Step 5: Solve for x
   x = 6,114,426,285.12/89,687.88
6. Step 6: Final answer
   x = 68,174.50