Finding the Fourth Proportional to 12,945.38, 17,857.41 and 8,968.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945.38 : 17,857.41 = 8,968.82 : x
2. Step 2: Convert to fraction form
   12,945.38/17,857.41 = 8,968.82/x
3. Step 3: Cross multiply
   12,945.38x = 17,857.41 × 8,968.82
4. Step 4: Simplify right side
   12,945.38x = 160,159,895.96
5. Step 5: Solve for x
   x = 160,159,895.96/12,945.38
6. Step 6: Final answer
   x = 12,371.97