Finding the Fourth Proportional to 9,134.48, 12,605.46 and 5,155.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,134.48 : 12,605.46 = 5,155.04 : x
2. Step 2: Convert to fraction form
   9,134.48/12,605.46 = 5,155.04/x
3. Step 3: Cross multiply
   9,134.48x = 12,605.46 × 5,155.04
4. Step 4: Simplify right side
   9,134.48x = 64,981,650.52
5. Step 5: Solve for x
   x = 64,981,650.52/9,134.48
6. Step 6: Final answer
   x = 7,113.89