Finding the Fourth Proportional to 6,377.50, 8,795.06 and 3,986.71

Step by Step Solution

1. Step 1: Write the proportion equation
   6,377.50 : 8,795.06 = 3,986.71 : x
2. Step 2: Convert to fraction form
   6,377.50/8,795.06 = 3,986.71/x
3. Step 3: Cross multiply
   6,377.50x = 8,795.06 × 3,986.71
4. Step 4: Simplify right side
   6,377.50x = 35,063,353.65
5. Step 5: Solve for x
   x = 35,063,353.65/6,377.50
6. Step 6: Final answer
   x = 5,497.98