Finding the Fourth Proportional to 12,957, 17,883.90 and 7,371.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,957 : 17,883.90 = 7,371.24 : x
2. Step 2: Convert to fraction form
   12,957/17,883.90 = 7,371.24/x
3. Step 3: Cross multiply
   12,957x = 17,883.90 × 7,371.24
4. Step 4: Simplify right side
   12,957x = 131,826,519.04
5. Step 5: Solve for x
   x = 131,826,519.04/12,957
6. Step 6: Final answer
   x = 10,174.15