Finding the Fourth Proportional to 10,425.38, 14,387.37 and 5,709.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,425.38 : 14,387.37 = 5,709.92 : x
2. Step 2: Convert to fraction form
   10,425.38/14,387.37 = 5,709.92/x
3. Step 3: Cross multiply
   10,425.38x = 14,387.37 × 5,709.92
4. Step 4: Simplify right side
   10,425.38x = 82,150,731.71
5. Step 5: Solve for x
   x = 82,150,731.71/10,425.38
6. Step 6: Final answer
   x = 7,879.88