Finding the Fourth Proportional to 12,945.28, 17,850.32 and 8,746.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945.28 : 17,850.32 = 8,746.24 : x
2. Step 2: Convert to fraction form
   12,945.28/17,850.32 = 8,746.24/x
3. Step 3: Cross multiply
   12,945.28x = 17,850.32 × 8,746.24
4. Step 4: Simplify right side
   12,945.28x = 156,123,182.80
5. Step 5: Solve for x
   x = 156,123,182.80/12,945.28
6. Step 6: Final answer
   x = 12,060.24