Finding the Fourth Proportional to 12,327.48, 17,018.82 and 8,143.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,327.48 : 17,018.82 = 8,143.02 : x
2. Step 2: Convert to fraction form
   12,327.48/17,018.82 = 8,143.02/x
3. Step 3: Cross multiply
   12,327.48x = 17,018.82 × 8,143.02
4. Step 4: Simplify right side
   12,327.48x = 138,584,591.64
5. Step 5: Solve for x
   x = 138,584,591.64/12,327.48
6. Step 6: Final answer
   x = 11,241.92