Finding the Fourth Proportional to 10,456.04, 14,428.68 and 5,739.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,456.04 : 14,428.68 = 5,739.92 : x
2. Step 2: Convert to fraction form
   10,456.04/14,428.68 = 5,739.92/x
3. Step 3: Cross multiply
   10,456.04x = 14,428.68 × 5,739.92
4. Step 4: Simplify right side
   10,456.04x = 82,819,468.91
5. Step 5: Solve for x
   x = 82,819,468.91/10,456.04
6. Step 6: Final answer
   x = 7,920.73