Finding the Fourth Proportional to 14,043.48, 21,067.38 and 5,279.01

Step by Step Solution

1. Step 1: Write the proportion equation
   14,043.48 : 21,067.38 = 5,279.01 : x
2. Step 2: Convert to fraction form
   14,043.48/21,067.38 = 5,279.01/x
3. Step 3: Cross multiply
   14,043.48x = 21,067.38 × 5,279.01
4. Step 4: Simplify right side
   14,043.48x = 111,214,909.69
5. Step 5: Solve for x
   x = 111,214,909.69/14,043.48
6. Step 6: Final answer
   x = 7,919.33