Finding the Fourth Proportional to 12,231.30, 18,361.92 and 8,074.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,231.30 : 18,361.92 = 8,074.82 : x
2. Step 2: Convert to fraction form
   12,231.30/18,361.92 = 8,074.82/x
3. Step 3: Cross multiply
   12,231.30x = 18,361.92 × 8,074.82
4. Step 4: Simplify right side
   12,231.30x = 148,269,198.85
5. Step 5: Solve for x
   x = 148,269,198.85/12,231.30
6. Step 6: Final answer
   x = 12,122.11