Finding the Fourth Proportional to 10,250.79, 14,147.43 and 5,775.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,250.79 : 14,147.43 = 5,775.42 : x
2. Step 2: Convert to fraction form
   10,250.79/14,147.43 = 5,775.42/x
3. Step 3: Cross multiply
   10,250.79x = 14,147.43 × 5,775.42
4. Step 4: Simplify right side
   10,250.79x = 81,707,350.17
5. Step 5: Solve for x
   x = 81,707,350.17/10,250.79
6. Step 6: Final answer
   x = 7,970.83