Finding the Fourth Proportional to 14,067.72, 21,103.92 and 5,303.28

Step by Step Solution

1. Step 1: Write the proportion equation
   14,067.72 : 21,103.92 = 5,303.28 : x
2. Step 2: Convert to fraction form
   14,067.72/21,103.92 = 5,303.28/x
3. Step 3: Cross multiply
   14,067.72x = 21,103.92 × 5,303.28
4. Step 4: Simplify right side
   14,067.72x = 111,919,996.86
5. Step 5: Solve for x
   x = 111,919,996.86/14,067.72
6. Step 6: Final answer
   x = 7,955.80