Finding the Fourth Proportional to 6,107.61, 8,422.83 and 3,865.71

Step by Step Solution

1. Step 1: Write the proportion equation
   6,107.61 : 8,422.83 = 3,865.71 : x
2. Step 2: Convert to fraction form
   6,107.61/8,422.83 = 3,865.71/x
3. Step 3: Cross multiply
   6,107.61x = 8,422.83 × 3,865.71
4. Step 4: Simplify right side
   6,107.61x = 32,560,218.16
5. Step 5: Solve for x
   x = 32,560,218.16/6,107.61
6. Step 6: Final answer
   x = 5,331.09