Finding the Fourth Proportional to 8,446.18, 12,665.42 and 3,512.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,446.18 : 12,665.42 = 3,512.88 : x
2. Step 2: Convert to fraction form
   8,446.18/12,665.42 = 3,512.88/x
3. Step 3: Cross multiply
   8,446.18x = 12,665.42 × 3,512.88
4. Step 4: Simplify right side
   8,446.18x = 44,492,100.61
5. Step 5: Solve for x
   x = 44,492,100.61/8,446.18
6. Step 6: Final answer
   x = 5,267.72