Finding the Fourth Proportional to 14,782.72, 20,399.52 and 8,068.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,782.72 : 20,399.52 = 8,068.20 : x
2. Step 2: Convert to fraction form
   14,782.72/20,399.52 = 8,068.20/x
3. Step 3: Cross multiply
   14,782.72x = 20,399.52 × 8,068.20
4. Step 4: Simplify right side
   14,782.72x = 164,587,407.26
5. Step 5: Solve for x
   x = 164,587,407.26/14,782.72
6. Step 6: Final answer
   x = 11,133.77