Finding the Fourth Proportional to 9,099.27, 12,560.31 and 5,744.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,099.27 : 12,560.31 = 5,744.28 : x
2. Step 2: Convert to fraction form
   9,099.27/12,560.31 = 5,744.28/x
3. Step 3: Cross multiply
   9,099.27x = 12,560.31 × 5,744.28
4. Step 4: Simplify right side
   9,099.27x = 72,149,937.53
5. Step 5: Solve for x
   x = 72,149,937.53/9,099.27
6. Step 6: Final answer
   x = 7,929.20