Finding the Fourth Proportional to 17,621.80, 24,305.34 and 14,965

Step by Step Solution

1. Step 1: Write the proportion equation
   17,621.80 : 24,305.34 = 14,965 : x
2. Step 2: Convert to fraction form
   17,621.80/24,305.34 = 14,965/x
3. Step 3: Cross multiply
   17,621.80x = 24,305.34 × 14,965
4. Step 4: Simplify right side
   17,621.80x = 363,729,413.10
5. Step 5: Solve for x
   x = 363,729,413.10/17,621.80
6. Step 6: Final answer
   x = 20,640.88