Finding the Fourth Proportional to 21,982.50, 30,335.85 and 12,046.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,982.50 : 30,335.85 = 12,046.50 : x
2. Step 2: Convert to fraction form
   21,982.50/30,335.85 = 12,046.50/x
3. Step 3: Cross multiply
   21,982.50x = 30,335.85 × 12,046.50
4. Step 4: Simplify right side
   21,982.50x = 365,440,817.03
5. Step 5: Solve for x
   x = 365,440,817.03/21,982.50
6. Step 6: Final answer
   x = 16,624.17