Finding the Fourth Proportional to 6,308.22, 8,705.40 and 3,951.74

Step by Step Solution

1. Step 1: Write the proportion equation
   6,308.22 : 8,705.40 = 3,951.74 : x
2. Step 2: Convert to fraction form
   6,308.22/8,705.40 = 3,951.74/x
3. Step 3: Cross multiply
   6,308.22x = 8,705.40 × 3,951.74
4. Step 4: Simplify right side
   6,308.22x = 34,401,477.40
5. Step 5: Solve for x
   x = 34,401,477.40/6,308.22
6. Step 6: Final answer
   x = 5,453.44