Finding the Fourth Proportional to 8,206.71, 12,291.71 and 3,817.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,206.71 : 12,291.71 = 3,817.59 : x
2. Step 2: Convert to fraction form
   8,206.71/12,291.71 = 3,817.59/x
3. Step 3: Cross multiply
   8,206.71x = 12,291.71 × 3,817.59
4. Step 4: Simplify right side
   8,206.71x = 46,924,690.09
5. Step 5: Solve for x
   x = 46,924,690.09/8,206.71
6. Step 6: Final answer
   x = 5,717.84