Finding the Fourth Proportional to 10,248.47, 14,142.94 and 5,772.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,248.47 : 14,142.94 = 5,772.31 : x
2. Step 2: Convert to fraction form
   10,248.47/14,142.94 = 5,772.31/x
3. Step 3: Cross multiply
   10,248.47x = 14,142.94 × 5,772.31
4. Step 4: Simplify right side
   10,248.47x = 81,637,334.42
5. Step 5: Solve for x
   x = 81,637,334.42/10,248.47
6. Step 6: Final answer
   x = 7,965.81