Finding the Fourth Proportional to 21,374.50, 32,061.36 and 8,229.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,374.50 : 32,061.36 = 8,229.72 : x
2. Step 2: Convert to fraction form
   21,374.50/32,061.36 = 8,229.72/x
3. Step 3: Cross multiply
   21,374.50x = 32,061.36 × 8,229.72
4. Step 4: Simplify right side
   21,374.50x = 263,856,015.62
5. Step 5: Solve for x
   x = 263,856,015.62/21,374.50
6. Step 6: Final answer
   x = 12,344.43