Finding the Fourth Proportional to 7,411.52, 10,231.61 and 5,729.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,411.52 : 10,231.61 = 5,729.12 : x
2. Step 2: Convert to fraction form
   7,411.52/10,231.61 = 5,729.12/x
3. Step 3: Cross multiply
   7,411.52x = 10,231.61 × 5,729.12
4. Step 4: Simplify right side
   7,411.52x = 58,618,121.48
5. Step 5: Solve for x
   x = 58,618,121.48/7,411.52
6. Step 6: Final answer
   x = 7,909.06