Finding the Fourth Proportional to 12,211.24, 18,293.22 and 8,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,211.24 : 18,293.22 = 8,038.72 : x
2. Step 2: Convert to fraction form
   12,211.24/18,293.22 = 8,038.72/x
3. Step 3: Cross multiply
   12,211.24x = 18,293.22 × 8,038.72
4. Step 4: Simplify right side
   12,211.24x = 147,054,073.48
5. Step 5: Solve for x
   x = 147,054,073.48/12,211.24
6. Step 6: Final answer
   x = 12,042.52