Finding the Fourth Proportional to 6,132.12, 9,151.86 and 5,715.96

Step by Step Solution

1. Step 1: Write the proportion equation
   6,132.12 : 9,151.86 = 5,715.96 : x
2. Step 2: Convert to fraction form
   6,132.12/9,151.86 = 5,715.96/x
3. Step 3: Cross multiply
   6,132.12x = 9,151.86 × 5,715.96
4. Step 4: Simplify right side
   6,132.12x = 52,311,665.69
5. Step 5: Solve for x
   x = 52,311,665.69/6,132.12
6. Step 6: Final answer
   x = 8,530.76