Finding the Fourth Proportional to 17,990.87, 24,830.39 and 10,443.47

Step by Step Solution

1. Step 1: Write the proportion equation
   17,990.87 : 24,830.39 = 10,443.47 : x
2. Step 2: Convert to fraction form
   17,990.87/24,830.39 = 10,443.47/x
3. Step 3: Cross multiply
   17,990.87x = 24,830.39 × 10,443.47
4. Step 4: Simplify right side
   17,990.87x = 259,315,335.01
5. Step 5: Solve for x
   x = 259,315,335.01/17,990.87
6. Step 6: Final answer
   x = 14,413.72