Finding the Fourth Proportional to 8,443.89, 12,669.12 and 3,512.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,443.89 : 12,669.12 = 3,512.25 : x
2. Step 2: Convert to fraction form
   8,443.89/12,669.12 = 3,512.25/x
3. Step 3: Cross multiply
   8,443.89x = 12,669.12 × 3,512.25
4. Step 4: Simplify right side
   8,443.89x = 44,497,116.72
5. Step 5: Solve for x
   x = 44,497,116.72/8,443.89
6. Step 6: Final answer
   x = 5,269.74