Finding the Fourth Proportional to 89,359.20, 123,311.98 and 48,521.73

Step by Step Solution

1. Step 1: Write the proportion equation
   89,359.20 : 123,311.98 = 48,521.73 : x
2. Step 2: Convert to fraction form
   89,359.20/123,311.98 = 48,521.73/x
3. Step 3: Cross multiply
   89,359.20x = 123,311.98 × 48,521.73
4. Step 4: Simplify right side
   89,359.20x = 5,983,310,599.33
5. Step 5: Solve for x
   x = 5,983,310,599.33/89,359.20
6. Step 6: Final answer
   x = 66,957.97