Finding the Fourth Proportional to 8,456.31, 12,685.32 and 4,951.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,456.31 : 12,685.32 = 4,951.62 : x
2. Step 2: Convert to fraction form
   8,456.31/12,685.32 = 4,951.62/x
3. Step 3: Cross multiply
   8,456.31x = 12,685.32 × 4,951.62
4. Step 4: Simplify right side
   8,456.31x = 62,812,884.22
5. Step 5: Solve for x
   x = 62,812,884.22/8,456.31
6. Step 6: Final answer
   x = 7,427.93