Finding the Fourth Proportional to 21,993.54, 32,965.55 and 10,908.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,993.54 : 32,965.55 = 10,908.18 : x
2. Step 2: Convert to fraction form
   21,993.54/32,965.55 = 10,908.18/x
3. Step 3: Cross multiply
   21,993.54x = 32,965.55 × 10,908.18
4. Step 4: Simplify right side
   21,993.54x = 359,594,098.66
5. Step 5: Solve for x
   x = 359,594,098.66/21,993.54
6. Step 6: Final answer
   x = 16,349.99