Finding the Fourth Proportional to 21,426.00, 32,159.78 and 10,340.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,426.00 : 32,159.78 = 10,340.49 : x
2. Step 2: Convert to fraction form
   21,426.00/32,159.78 = 10,340.49/x
3. Step 3: Cross multiply
   21,426.00x = 32,159.78 × 10,340.49
4. Step 4: Simplify right side
   21,426.00x = 332,548,049.33
5. Step 5: Solve for x
   x = 332,548,049.33/21,426.00
6. Step 6: Final answer
   x = 15,520.77