Finding the Fourth Proportional to 12,488.50, 17,234.19 and 7,183.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.50 : 17,234.19 = 7,183.63 : x
2. Step 2: Convert to fraction form
   12,488.50/17,234.19 = 7,183.63/x
3. Step 3: Cross multiply
   12,488.50x = 17,234.19 × 7,183.63
4. Step 4: Simplify right side
   12,488.50x = 123,804,044.31
5. Step 5: Solve for x
   x = 123,804,044.31/12,488.50
6. Step 6: Final answer
   x = 9,913.44