Finding the Fourth Proportional to 89,789.86, 123,910.33 and 49,502.74

Step by Step Solution

1. Step 1: Write the proportion equation
   89,789.86 : 123,910.33 = 49,502.74 : x
2. Step 2: Convert to fraction form
   89,789.86/123,910.33 = 49,502.74/x
3. Step 3: Cross multiply
   89,789.86x = 123,910.33 × 49,502.74
4. Step 4: Simplify right side
   89,789.86x = 6,133,900,849.30
5. Step 5: Solve for x
   x = 6,133,900,849.30/89,789.86
6. Step 6: Final answer
   x = 68,313.96