Finding the Fourth Proportional to 9,062.28, 12,499.62 and 8,757.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,062.28 : 12,499.62 = 8,757.47 : x
2. Step 2: Convert to fraction form
   9,062.28/12,499.62 = 8,757.47/x
3. Step 3: Cross multiply
   9,062.28x = 12,499.62 × 8,757.47
4. Step 4: Simplify right side
   9,062.28x = 109,465,047.16
5. Step 5: Solve for x
   x = 109,465,047.16/9,062.28
6. Step 6: Final answer
   x = 12,079.19