Finding the Fourth Proportional to 13,838.72, 20,745.72 and 5,067.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,838.72 : 20,745.72 = 5,067.68 : x
2. Step 2: Convert to fraction form
   13,838.72/20,745.72 = 5,067.68/x
3. Step 3: Cross multiply
   13,838.72x = 20,745.72 × 5,067.68
4. Step 4: Simplify right side
   13,838.72x = 105,132,670.33
5. Step 5: Solve for x
   x = 105,132,670.33/13,838.72
6. Step 6: Final answer
   x = 7,596.99