Finding the Fourth Proportional to 12,418.52, 17,144.61 and 8,181.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,418.52 : 17,144.61 = 8,181.88 : x
2. Step 2: Convert to fraction form
   12,418.52/17,144.61 = 8,181.88/x
3. Step 3: Cross multiply
   12,418.52x = 17,144.61 × 8,181.88
4. Step 4: Simplify right side
   12,418.52x = 140,275,114.15
5. Step 5: Solve for x
   x = 140,275,114.15/12,418.52
6. Step 6: Final answer
   x = 11,295.64