Finding the Fourth Proportional to 6,287.71, 8,677.50 and 3,898.14

Step by Step Solution

1. Step 1: Write the proportion equation
   6,287.71 : 8,677.50 = 3,898.14 : x
2. Step 2: Convert to fraction form
   6,287.71/8,677.50 = 3,898.14/x
3. Step 3: Cross multiply
   6,287.71x = 8,677.50 × 3,898.14
4. Step 4: Simplify right side
   6,287.71x = 33,826,109.85
5. Step 5: Solve for x
   x = 33,826,109.85/6,287.71
6. Step 6: Final answer
   x = 5,379.72