Finding the Fourth Proportional to 16,105.56, 22,221.12 and 10,440.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,105.56 : 22,221.12 = 10,440.54 : x
2. Step 2: Convert to fraction form
   16,105.56/22,221.12 = 10,440.54/x
3. Step 3: Cross multiply
   16,105.56x = 22,221.12 × 10,440.54
4. Step 4: Simplify right side
   16,105.56x = 232,000,492.20
5. Step 5: Solve for x
   x = 232,000,492.20/16,105.56
6. Step 6: Final answer
   x = 14,404.99