Finding the Fourth Proportional to 23,456.12, 35,166.60 and 8,662.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,456.12 : 35,166.60 = 8,662.28 : x
2. Step 2: Convert to fraction form
   23,456.12/35,166.60 = 8,662.28/x
3. Step 3: Cross multiply
   23,456.12x = 35,166.60 × 8,662.28
4. Step 4: Simplify right side
   23,456.12x = 304,622,760.02
5. Step 5: Solve for x
   x = 304,622,760.02/23,456.12
6. Step 6: Final answer
   x = 12,986.92