Finding the Fourth Proportional to 10,231.86, 14,120.37 and 5,755.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,231.86 : 14,120.37 = 5,755.80 : x
2. Step 2: Convert to fraction form
   10,231.86/14,120.37 = 5,755.80/x
3. Step 3: Cross multiply
   10,231.86x = 14,120.37 × 5,755.80
4. Step 4: Simplify right side
   10,231.86x = 81,274,025.65
5. Step 5: Solve for x
   x = 81,274,025.65/10,231.86
6. Step 6: Final answer
   x = 7,943.23