Finding the Fourth Proportional to 6,281.16, 8,665.23 and 3,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,281.16 : 8,665.23 = 3,890.50 : x
2. Step 2: Convert to fraction form
   6,281.16/8,665.23 = 3,890.50/x
3. Step 3: Cross multiply
   6,281.16x = 8,665.23 × 3,890.50
4. Step 4: Simplify right side
   6,281.16x = 33,712,014.54
5. Step 5: Solve for x
   x = 33,712,014.54/6,281.16
6. Step 6: Final answer
   x = 5,367.16