Finding the Fourth Proportional to 21,627.39, 32,454.76 and 8,479.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,627.39 : 32,454.76 = 8,479.42 : x
2. Step 2: Convert to fraction form
   21,627.39/32,454.76 = 8,479.42/x
3. Step 3: Cross multiply
   21,627.39x = 32,454.76 × 8,479.42
4. Step 4: Simplify right side
   21,627.39x = 275,197,541.04
5. Step 5: Solve for x
   x = 275,197,541.04/21,627.39
6. Step 6: Final answer
   x = 12,724.49