Finding the Fourth Proportional to 72,060.50, 99,444.47 and 39,797.29

Step by Step Solution

1. Step 1: Write the proportion equation
   72,060.50 : 99,444.47 = 39,797.29 : x
2. Step 2: Convert to fraction form
   72,060.50/99,444.47 = 39,797.29/x
3. Step 3: Cross multiply
   72,060.50x = 99,444.47 × 39,797.29
4. Step 4: Simplify right side
   72,060.50x = 3,957,620,411.49
5. Step 5: Solve for x
   x = 3,957,620,411.49/72,060.50
6. Step 6: Final answer
   x = 54,920.80