Finding the Fourth Proportional to 6,238.63, 8,609.31 and 3,586.55

Step by Step Solution

1. Step 1: Write the proportion equation
   6,238.63 : 8,609.31 = 3,586.55 : x
2. Step 2: Convert to fraction form
   6,238.63/8,609.31 = 3,586.55/x
3. Step 3: Cross multiply
   6,238.63x = 8,609.31 × 3,586.55
4. Step 4: Simplify right side
   6,238.63x = 30,877,720.78
5. Step 5: Solve for x
   x = 30,877,720.78/6,238.63
6. Step 6: Final answer
   x = 4,949.44