Finding the Fourth Proportional to 16,993.99, 23,451.86 and 9,919.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,993.99 : 23,451.86 = 9,919.04 : x
2. Step 2: Convert to fraction form
   16,993.99/23,451.86 = 9,919.04/x
3. Step 3: Cross multiply
   16,993.99x = 23,451.86 × 9,919.04
4. Step 4: Simplify right side
   16,993.99x = 232,619,937.41
5. Step 5: Solve for x
   x = 232,619,937.41/16,993.99
6. Step 6: Final answer
   x = 13,688.36