Finding the Fourth Proportional to 21,705.82, 32,569.29 and 9,867.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,705.82 : 32,569.29 = 9,867.32 : x
2. Step 2: Convert to fraction form
   21,705.82/32,569.29 = 9,867.32/x
3. Step 3: Cross multiply
   21,705.82x = 32,569.29 × 9,867.32
4. Step 4: Simplify right side
   21,705.82x = 321,371,565.89
5. Step 5: Solve for x
   x = 321,371,565.89/21,705.82
6. Step 6: Final answer
   x = 14,805.78