Finding the Fourth Proportional to 9,662.21, 13,333.74 and 5,413.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,662.21 : 13,333.74 = 5,413.31 : x
2. Step 2: Convert to fraction form
   9,662.21/13,333.74 = 5,413.31/x
3. Step 3: Cross multiply
   9,662.21x = 13,333.74 × 5,413.31
4. Step 4: Simplify right side
   9,662.21x = 72,179,601.41
5. Step 5: Solve for x
   x = 72,179,601.41/9,662.21
6. Step 6: Final answer
   x = 7,470.30