Finding the Fourth Proportional to 10,440.12, 14,407.57 and 5,724.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.12 : 14,407.57 = 5,724.41 : x
2. Step 2: Convert to fraction form
   10,440.12/14,407.57 = 5,724.41/x
3. Step 3: Cross multiply
   10,440.12x = 14,407.57 × 5,724.41
4. Step 4: Simplify right side
   10,440.12x = 82,474,772.90
5. Step 5: Solve for x
   x = 82,474,772.90/10,440.12
6. Step 6: Final answer
   x = 7,899.79