Finding the Fourth Proportional to 16,105.32, 22,225.06 and 9,031.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,105.32 : 22,225.06 = 9,031.72 : x
2. Step 2: Convert to fraction form
   16,105.32/22,225.06 = 9,031.72/x
3. Step 3: Cross multiply
   16,105.32x = 22,225.06 × 9,031.72
4. Step 4: Simplify right side
   16,105.32x = 200,730,518.90
5. Step 5: Solve for x
   x = 200,730,518.90/16,105.32
6. Step 6: Final answer
   x = 12,463.62