Finding the Fourth Proportional to 10,231.52, 14,119.40 and 5,755.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,231.52 : 14,119.40 = 5,755.28 : x
2. Step 2: Convert to fraction form
   10,231.52/14,119.40 = 5,755.28/x
3. Step 3: Cross multiply
   10,231.52x = 14,119.40 × 5,755.28
4. Step 4: Simplify right side
   10,231.52x = 81,261,100.43
5. Step 5: Solve for x
   x = 81,261,100.43/10,231.52
6. Step 6: Final answer
   x = 7,942.23