Finding the Fourth Proportional to 89,474.88, 123,472.86 and 49,188.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,474.88 : 123,472.86 = 49,188.72 : x
2. Step 2: Convert to fraction form
   89,474.88/123,472.86 = 49,188.72/x
3. Step 3: Cross multiply
   89,474.88x = 123,472.86 × 49,188.72
4. Step 4: Simplify right side
   89,474.88x = 6,073,471,938.14
5. Step 5: Solve for x
   x = 6,073,471,938.14/89,474.88
6. Step 6: Final answer
   x = 67,879.07