Finding the Fourth Proportional to 21,704.72, 32,561.13 and 9,859.33

Step by Step Solution

1. Step 1: Write the proportion equation
   21,704.72 : 32,561.13 = 9,859.33 : x
2. Step 2: Convert to fraction form
   21,704.72/32,561.13 = 9,859.33/x
3. Step 3: Cross multiply
   21,704.72x = 32,561.13 × 9,859.33
4. Step 4: Simplify right side
   21,704.72x = 321,030,763.04
5. Step 5: Solve for x
   x = 321,030,763.04/21,704.72
6. Step 6: Final answer
   x = 14,790.83