Finding the Fourth Proportional to 14,540.72, 20,064.72 and 8,570.24

Step by Step Solution

1. Step 1: Write the proportion equation
   14,540.72 : 20,064.72 = 8,570.24 : x
2. Step 2: Convert to fraction form
   14,540.72/20,064.72 = 8,570.24/x
3. Step 3: Cross multiply
   14,540.72x = 20,064.72 × 8,570.24
4. Step 4: Simplify right side
   14,540.72x = 171,959,465.93
5. Step 5: Solve for x
   x = 171,959,465.93/14,540.72
6. Step 6: Final answer
   x = 11,826.06