Finding the Fourth Proportional to 16,045.98, 22,143.46 and 8,972.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,045.98 : 22,143.46 = 8,972.42 : x
2. Step 2: Convert to fraction form
   16,045.98/22,143.46 = 8,972.42/x
3. Step 3: Cross multiply
   16,045.98x = 22,143.46 × 8,972.42
4. Step 4: Simplify right side
   16,045.98x = 198,680,456.30
5. Step 5: Solve for x
   x = 198,680,456.30/16,045.98
6. Step 6: Final answer
   x = 12,381.95