Finding the Fourth Proportional to 89,387, 123,353.92 and 49,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,387 : 123,353.92 = 49,100.76 : x
2. Step 2: Convert to fraction form
   89,387/123,353.92 = 49,100.76/x
3. Step 3: Cross multiply
   89,387x = 123,353.92 × 49,100.76
4. Step 4: Simplify right side
   89,387x = 6,056,771,220.98
5. Step 5: Solve for x
   x = 6,056,771,220.98/89,387
6. Step 6: Final answer
   x = 67,758.97