Finding the Fourth Proportional to 16,413.99, 24,621.32 and 5,320.65

Step by Step Solution

1. Step 1: Write the proportion equation
   16,413.99 : 24,621.32 = 5,320.65 : x
2. Step 2: Convert to fraction form
   16,413.99/24,621.32 = 5,320.65/x
3. Step 3: Cross multiply
   16,413.99x = 24,621.32 × 5,320.65
4. Step 4: Simplify right side
   16,413.99x = 131,001,501.96
5. Step 5: Solve for x
   x = 131,001,501.96/16,413.99
6. Step 6: Final answer
   x = 7,981.09