Finding the Fourth Proportional to 12,436.26, 17,162.34 and 7,654.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.26 : 17,162.34 = 7,654.42 : x
2. Step 2: Convert to fraction form
   12,436.26/17,162.34 = 7,654.42/x
3. Step 3: Cross multiply
   12,436.26x = 17,162.34 × 7,654.42
4. Step 4: Simplify right side
   12,436.26x = 131,367,758.54
5. Step 5: Solve for x
   x = 131,367,758.54/12,436.26
6. Step 6: Final answer
   x = 10,563.28