Finding the Fourth Proportional to 12,488.43, 17,234.57 and 7,183.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.43 : 17,234.57 = 7,183.25 : x
2. Step 2: Convert to fraction form
   12,488.43/17,234.57 = 7,183.25/x
3. Step 3: Cross multiply
   12,488.43x = 17,234.57 × 7,183.25
4. Step 4: Simplify right side
   12,488.43x = 123,800,102.86
5. Step 5: Solve for x
   x = 123,800,102.86/12,488.43
6. Step 6: Final answer
   x = 9,913.18