Finding the Fourth Proportional to 10,443.76, 14,411.64 and 5,727.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.76 : 14,411.64 = 5,727.28 : x
2. Step 2: Convert to fraction form
   10,443.76/14,411.64 = 5,727.28/x
3. Step 3: Cross multiply
   10,443.76x = 14,411.64 × 5,727.28
4. Step 4: Simplify right side
   10,443.76x = 82,539,497.54
5. Step 5: Solve for x
   x = 82,539,497.54/10,443.76
6. Step 6: Final answer
   x = 7,903.24