Finding the Fourth Proportional to 8,440.82, 12,661.76 and 3,246.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,440.82 : 12,661.76 = 3,246.69 : x
2. Step 2: Convert to fraction form
   8,440.82/12,661.76 = 3,246.69/x
3. Step 3: Cross multiply
   8,440.82x = 12,661.76 × 3,246.69
4. Step 4: Simplify right side
   8,440.82x = 41,108,817.69
5. Step 5: Solve for x
   x = 41,108,817.69/8,440.82
6. Step 6: Final answer
   x = 4,870.24