Finding the Fourth Proportional to 10,440.44, 14,407.76 and 5,724.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.44 : 14,407.76 = 5,724.72 : x
2. Step 2: Convert to fraction form
   10,440.44/14,407.76 = 5,724.72/x
3. Step 3: Cross multiply
   10,440.44x = 14,407.76 × 5,724.72
4. Step 4: Simplify right side
   10,440.44x = 82,480,363.20
5. Step 5: Solve for x
   x = 82,480,363.20/10,440.44
6. Step 6: Final answer
   x = 7,900.09