Finding the Fourth Proportional to 89,687.76, 123,769.25 and 49,401.63

Step by Step Solution

1. Step 1: Write the proportion equation
   89,687.76 : 123,769.25 = 49,401.63 : x
2. Step 2: Convert to fraction form
   89,687.76/123,769.25 = 49,401.63/x
3. Step 3: Cross multiply
   89,687.76x = 123,769.25 × 49,401.63
4. Step 4: Simplify right side
   89,687.76x = 6,114,402,693.88
5. Step 5: Solve for x
   x = 6,114,402,693.88/89,687.76
6. Step 6: Final answer
   x = 68,174.33