Finding the Fourth Proportional to 89,216.50, 123,118.77 and 49,472.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,216.50 : 123,118.77 = 49,472.50 : x
2. Step 2: Convert to fraction form
   89,216.50/123,118.77 = 49,472.50/x
3. Step 3: Cross multiply
   89,216.50x = 123,118.77 × 49,472.50
4. Step 4: Simplify right side
   89,216.50x = 6,090,993,348.83
5. Step 5: Solve for x
   x = 6,090,993,348.83/89,216.50
6. Step 6: Final answer
   x = 68,272.05