Finding the Fourth Proportional to 8,367.31, 12,542.81 and 3,983.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,367.31 : 12,542.81 = 3,983.59 : x
2. Step 2: Convert to fraction form
   8,367.31/12,542.81 = 3,983.59/x
3. Step 3: Cross multiply
   8,367.31x = 12,542.81 × 3,983.59
4. Step 4: Simplify right side
   8,367.31x = 49,965,392.57
5. Step 5: Solve for x
   x = 49,965,392.57/8,367.31
6. Step 6: Final answer
   x = 5,971.50