Finding the Fourth Proportional to 14,081.24, 21,118.52 and 8,145.36

Step by Step Solution

1. Step 1: Write the proportion equation
   14,081.24 : 21,118.52 = 8,145.36 : x
2. Step 2: Convert to fraction form
   14,081.24/21,118.52 = 8,145.36/x
3. Step 3: Cross multiply
   14,081.24x = 21,118.52 × 8,145.36
4. Step 4: Simplify right side
   14,081.24x = 172,017,968.43
5. Step 5: Solve for x
   x = 172,017,968.43/14,081.24
6. Step 6: Final answer
   x = 12,216.11