Finding the Fourth Proportional to 12,256.43, 16,911.27 and 8,013.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,256.43 : 16,911.27 = 8,013.69 : x
2. Step 2: Convert to fraction form
   12,256.43/16,911.27 = 8,013.69/x
3. Step 3: Cross multiply
   12,256.43x = 16,911.27 × 8,013.69
4. Step 4: Simplify right side
   12,256.43x = 135,521,675.29
5. Step 5: Solve for x
   x = 135,521,675.29/12,256.43
6. Step 6: Final answer
   x = 11,057.19