Finding the Fourth Proportional to 21,401.82, 32,106.78 and 8,255.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,401.82 : 32,106.78 = 8,255.52 : x
2. Step 2: Convert to fraction form
   21,401.82/32,106.78 = 8,255.52/x
3. Step 3: Cross multiply
   21,401.82x = 32,106.78 × 8,255.52
4. Step 4: Simplify right side
   21,401.82x = 265,058,164.43
5. Step 5: Solve for x
   x = 265,058,164.43/21,401.82
6. Step 6: Final answer
   x = 12,384.84