Finding the Fourth Proportional to 89,499.72, 123,517.49 and 49,220.58

Step by Step Solution

1. Step 1: Write the proportion equation
   89,499.72 : 123,517.49 = 49,220.58 : x
2. Step 2: Convert to fraction form
   89,499.72/123,517.49 = 49,220.58/x
3. Step 3: Cross multiply
   89,499.72x = 123,517.49 × 49,220.58
4. Step 4: Simplify right side
   89,499.72x = 6,079,602,251.84
5. Step 5: Solve for x
   x = 6,079,602,251.84/89,499.72
6. Step 6: Final answer
   x = 67,928.73