Finding the Fourth Proportional to 7,046.43, 9,724.06 and 3,902.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,046.43 : 9,724.06 = 3,902.61 : x
2. Step 2: Convert to fraction form
   7,046.43/9,724.06 = 3,902.61/x
3. Step 3: Cross multiply
   7,046.43x = 9,724.06 × 3,902.61
4. Step 4: Simplify right side
   7,046.43x = 37,949,213.80
5. Step 5: Solve for x
   x = 37,949,213.80/7,046.43
6. Step 6: Final answer
   x = 5,385.60