Finding the Fourth Proportional to 21,328, 32,003.52 and 10,384

Step by Step Solution

1. Step 1: Write the proportion equation
   21,328 : 32,003.52 = 10,384 : x
2. Step 2: Convert to fraction form
   21,328/32,003.52 = 10,384/x
3. Step 3: Cross multiply
   21,328x = 32,003.52 × 10,384
4. Step 4: Simplify right side
   21,328x = 332,324,551.68
5. Step 5: Solve for x
   x = 332,324,551.68/21,328
6. Step 6: Final answer
   x = 15,581.61