Finding the Fourth Proportional to 8,789.14, 12,132.12 and 5,434.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,789.14 : 12,132.12 = 5,434.54 : x
2. Step 2: Convert to fraction form
   8,789.14/12,132.12 = 5,434.54/x
3. Step 3: Cross multiply
   8,789.14x = 12,132.12 × 5,434.54
4. Step 4: Simplify right side
   8,789.14x = 65,932,491.42
5. Step 5: Solve for x
   x = 65,932,491.42/8,789.14
6. Step 6: Final answer
   x = 7,501.59