Finding the Fourth Proportional to 17,949.12, 24,766.74 and 9,991.29

Step by Step Solution

1. Step 1: Write the proportion equation
   17,949.12 : 24,766.74 = 9,991.29 : x
2. Step 2: Convert to fraction form
   17,949.12/24,766.74 = 9,991.29/x
3. Step 3: Cross multiply
   17,949.12x = 24,766.74 × 9,991.29
4. Step 4: Simplify right side
   17,949.12x = 247,451,681.69
5. Step 5: Solve for x
   x = 247,451,681.69/17,949.12
6. Step 6: Final answer
   x = 13,786.28