Finding the Fourth Proportional to 8,289.76, 12,435.18 and 3,359.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,289.76 : 12,435.18 = 3,359.29 : x
2. Step 2: Convert to fraction form
   8,289.76/12,435.18 = 3,359.29/x
3. Step 3: Cross multiply
   8,289.76x = 12,435.18 × 3,359.29
4. Step 4: Simplify right side
   8,289.76x = 41,773,375.82
5. Step 5: Solve for x
   x = 41,773,375.82/8,289.76
6. Step 6: Final answer
   x = 5,039.15