Finding the Fourth Proportional to 10,440.06, 14,407.47 and 5,724.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.06 : 14,407.47 = 5,724.29 : x
2. Step 2: Convert to fraction form
   10,440.06/14,407.47 = 5,724.29/x
3. Step 3: Cross multiply
   10,440.06x = 14,407.47 × 5,724.29
4. Step 4: Simplify right side
   10,440.06x = 82,472,464.41
5. Step 5: Solve for x
   x = 82,472,464.41/10,440.06
6. Step 6: Final answer
   x = 7,899.62