Finding the Fourth Proportional to 12,849.72, 17,731.95 and 7,183.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,849.72 : 17,731.95 = 7,183.37 : x
2. Step 2: Convert to fraction form
   12,849.72/17,731.95 = 7,183.37/x
3. Step 3: Cross multiply
   12,849.72x = 17,731.95 × 7,183.37
4. Step 4: Simplify right side
   12,849.72x = 127,375,069.01
5. Step 5: Solve for x
   x = 127,375,069.01/12,849.72
6. Step 6: Final answer
   x = 9,912.67