Finding the Fourth Proportional to 10,443.70, 14,412.24 and 5,728

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.70 : 14,412.24 = 5,728 : x
2. Step 2: Convert to fraction form
   10,443.70/14,412.24 = 5,728/x
3. Step 3: Cross multiply
   10,443.70x = 14,412.24 × 5,728
4. Step 4: Simplify right side
   10,443.70x = 82,553,310.72
5. Step 5: Solve for x
   x = 82,553,310.72/10,443.70
6. Step 6: Final answer
   x = 7,904.60