Finding the Fourth Proportional to 21,759.35, 32,641.29 and 9,280.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,759.35 : 32,641.29 = 9,280.69 : x
2. Step 2: Convert to fraction form
   21,759.35/32,641.29 = 9,280.69/x
3. Step 3: Cross multiply
   21,759.35x = 32,641.29 × 9,280.69
4. Step 4: Simplify right side
   21,759.35x = 302,933,612.09
5. Step 5: Solve for x
   x = 302,933,612.09/21,759.35
6. Step 6: Final answer
   x = 13,922.00