Finding the Fourth Proportional to 10,239.31, 14,127.42 and 5,762.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,239.31 : 14,127.42 = 5,762.80 : x
2. Step 2: Convert to fraction form
   10,239.31/14,127.42 = 5,762.80/x
3. Step 3: Cross multiply
   10,239.31x = 14,127.42 × 5,762.80
4. Step 4: Simplify right side
   10,239.31x = 81,413,495.98
5. Step 5: Solve for x
   x = 81,413,495.98/10,239.31
6. Step 6: Final answer
   x = 7,951.07