Finding the Fourth Proportional to 12,223.27, 18,321.67 and 5,987.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,223.27 : 18,321.67 = 5,987.49 : x
2. Step 2: Convert to fraction form
   12,223.27/18,321.67 = 5,987.49/x
3. Step 3: Cross multiply
   12,223.27x = 18,321.67 × 5,987.49
4. Step 4: Simplify right side
   12,223.27x = 109,700,815.91
5. Step 5: Solve for x
   x = 109,700,815.91/12,223.27
6. Step 6: Final answer
   x = 8,974.75