Finding the Fourth Proportional to 9,662.88, 13,331.75 and 5,413.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,662.88 : 13,331.75 = 5,413.37 : x
2. Step 2: Convert to fraction form
   9,662.88/13,331.75 = 5,413.37/x
3. Step 3: Cross multiply
   9,662.88x = 13,331.75 × 5,413.37
4. Step 4: Simplify right side
   9,662.88x = 72,169,672.07
5. Step 5: Solve for x
   x = 72,169,672.07/9,662.88
6. Step 6: Final answer
   x = 7,468.75