Finding the Fourth Proportional to 21,608.29, 32,380.17 and 19,560.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,608.29 : 32,380.17 = 19,560.16 : x
2. Step 2: Convert to fraction form
   21,608.29/32,380.17 = 19,560.16/x
3. Step 3: Cross multiply
   21,608.29x = 32,380.17 × 19,560.16
4. Step 4: Simplify right side
   21,608.29x = 633,361,306.03
5. Step 5: Solve for x
   x = 633,361,306.03/21,608.29
6. Step 6: Final answer
   x = 29,311.03