Finding the Fourth Proportional to 12,079.40, 18,095.50 and 8,322.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,079.40 : 18,095.50 = 8,322.31 : x
2. Step 2: Convert to fraction form
   12,079.40/18,095.50 = 8,322.31/x
3. Step 3: Cross multiply
   12,079.40x = 18,095.50 × 8,322.31
4. Step 4: Simplify right side
   12,079.40x = 150,596,380.74
5. Step 5: Solve for x
   x = 150,596,380.74/12,079.40
6. Step 6: Final answer
   x = 12,467.21