Finding the Fourth Proportional to 21,994.50, 30,354.33 and 12,060.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,994.50 : 30,354.33 = 12,060.42 : x
2. Step 2: Convert to fraction form
   21,994.50/30,354.33 = 12,060.42/x
3. Step 3: Cross multiply
   21,994.50x = 30,354.33 × 12,060.42
4. Step 4: Simplify right side
   21,994.50x = 366,085,968.62
5. Step 5: Solve for x
   x = 366,085,968.62/21,994.50
6. Step 6: Final answer
   x = 16,644.43