Finding the Fourth Proportional to 21,404.64, 32,106.24 and 5,821.92

Step by Step Solution

1. Step 1: Write the proportion equation
   21,404.64 : 32,106.24 = 5,821.92 : x
2. Step 2: Convert to fraction form
   21,404.64/32,106.24 = 5,821.92/x
3. Step 3: Cross multiply
   21,404.64x = 32,106.24 × 5,821.92
4. Step 4: Simplify right side
   21,404.64x = 186,919,960.78
5. Step 5: Solve for x
   x = 186,919,960.78/21,404.64
6. Step 6: Final answer
   x = 8,732.68