Finding the Fourth Proportional to 6,294.71, 8,686.73 and 3,500.21

Step by Step Solution

1. Step 1: Write the proportion equation
   6,294.71 : 8,686.73 = 3,500.21 : x
2. Step 2: Convert to fraction form
   6,294.71/8,686.73 = 3,500.21/x
3. Step 3: Cross multiply
   6,294.71x = 8,686.73 × 3,500.21
4. Step 4: Simplify right side
   6,294.71x = 30,405,379.21
5. Step 5: Solve for x
   x = 30,405,379.21/6,294.71
6. Step 6: Final answer
   x = 4,830.31