Finding the Fourth Proportional to 14,290.24, 19,720.56 and 8,002.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,290.24 : 19,720.56 = 8,002.72 : x
2. Step 2: Convert to fraction form
   14,290.24/19,720.56 = 8,002.72/x
3. Step 3: Cross multiply
   14,290.24x = 19,720.56 × 8,002.72
4. Step 4: Simplify right side
   14,290.24x = 157,818,119.92
5. Step 5: Solve for x
   x = 157,818,119.92/14,290.24
6. Step 6: Final answer
   x = 11,043.77