Finding the Fourth Proportional to 8,468.45, 12,710.56 and 4,311.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,468.45 : 12,710.56 = 4,311.57 : x
2. Step 2: Convert to fraction form
   8,468.45/12,710.56 = 4,311.57/x
3. Step 3: Cross multiply
   8,468.45x = 12,710.56 × 4,311.57
4. Step 4: Simplify right side
   8,468.45x = 54,802,458.40
5. Step 5: Solve for x
   x = 54,802,458.40/8,468.45
6. Step 6: Final answer
   x = 6,471.37