Finding the Fourth Proportional to 12,367.56, 17,057.28 and 10,872.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,367.56 : 17,057.28 = 10,872.28 : x
2. Step 2: Convert to fraction form
   12,367.56/17,057.28 = 10,872.28/x
3. Step 3: Cross multiply
   12,367.56x = 17,057.28 × 10,872.28
4. Step 4: Simplify right side
   12,367.56x = 185,451,524.20
5. Step 5: Solve for x
   x = 185,451,524.20/12,367.56
6. Step 6: Final answer
   x = 14,995.00