Finding the Fourth Proportional to 89,839.71, 123,977.97 and 49,553.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,839.71 : 123,977.97 = 49,553.75 : x
2. Step 2: Convert to fraction form
   89,839.71/123,977.97 = 49,553.75/x
3. Step 3: Cross multiply
   89,839.71x = 123,977.97 × 49,553.75
4. Step 4: Simplify right side
   89,839.71x = 6,143,573,640.83
5. Step 5: Solve for x
   x = 6,143,573,640.83/89,839.71
6. Step 6: Final answer
   x = 68,383.72