Finding the Fourth Proportional to 89,687.23, 123,766.90 and 49,404.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,687.23 : 123,766.90 = 49,404.75 : x
2. Step 2: Convert to fraction form
   89,687.23/123,766.90 = 49,404.75/x
3. Step 3: Cross multiply
   89,687.23x = 123,766.90 × 49,404.75
4. Step 4: Simplify right side
   89,687.23x = 6,114,673,139.23
5. Step 5: Solve for x
   x = 6,114,673,139.23/89,687.23
6. Step 6: Final answer
   x = 68,177.74