Finding the Fourth Proportional to 16,028.42, 22,120.02 and 8,954.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,028.42 : 22,120.02 = 8,954.42 : x
2. Step 2: Convert to fraction form
   16,028.42/22,120.02 = 8,954.42/x
3. Step 3: Cross multiply
   16,028.42x = 22,120.02 × 8,954.42
4. Step 4: Simplify right side
   16,028.42x = 198,071,838.89
5. Step 5: Solve for x
   x = 198,071,838.89/16,028.42
6. Step 6: Final answer
   x = 12,357.54