Finding the Fourth Proportional to 12,488.25, 17,234.28 and 7,183.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.25 : 17,234.28 = 7,183.06 : x
2. Step 2: Convert to fraction form
   12,488.25/17,234.28 = 7,183.06/x
3. Step 3: Cross multiply
   12,488.25x = 17,234.28 × 7,183.06
4. Step 4: Simplify right side
   12,488.25x = 123,794,867.30
5. Step 5: Solve for x
   x = 123,794,867.30/12,488.25
6. Step 6: Final answer
   x = 9,912.91