Finding the Fourth Proportional to 89,401.20, 123,375.83 and 49,117.57

Step by Step Solution

1. Step 1: Write the proportion equation
   89,401.20 : 123,375.83 = 49,117.57 : x
2. Step 2: Convert to fraction form
   89,401.20/123,375.83 = 49,117.57/x
3. Step 3: Cross multiply
   89,401.20x = 123,375.83 × 49,117.57
4. Step 4: Simplify right side
   89,401.20x = 6,059,921,520.72
5. Step 5: Solve for x
   x = 6,059,921,520.72/89,401.20
6. Step 6: Final answer
   x = 67,783.45