Finding the Fourth Proportional to 12,414.76, 17,131.50 and 8,886.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,414.76 : 17,131.50 = 8,886.28 : x
2. Step 2: Convert to fraction form
   12,414.76/17,131.50 = 8,886.28/x
3. Step 3: Cross multiply
   12,414.76x = 17,131.50 × 8,886.28
4. Step 4: Simplify right side
   12,414.76x = 152,235,305.82
5. Step 5: Solve for x
   x = 152,235,305.82/12,414.76
6. Step 6: Final answer
   x = 12,262.44