Finding the Fourth Proportional to 12,562.56, 17,314.56 and 9,413.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,562.56 : 17,314.56 = 9,413.28 : x
2. Step 2: Convert to fraction form
   12,562.56/17,314.56 = 9,413.28/x
3. Step 3: Cross multiply
   12,562.56x = 17,314.56 × 9,413.28
4. Step 4: Simplify right side
   12,562.56x = 162,986,801.36
5. Step 5: Solve for x
   x = 162,986,801.36/12,562.56
6. Step 6: Final answer
   x = 12,974.01