Finding the Fourth Proportional to 27,729.27, 41,578.69 and 13,658.35

Step by Step Solution

1. Step 1: Write the proportion equation
   27,729.27 : 41,578.69 = 13,658.35 : x
2. Step 2: Convert to fraction form
   27,729.27/41,578.69 = 13,658.35/x
3. Step 3: Cross multiply
   27,729.27x = 41,578.69 × 13,658.35
4. Step 4: Simplify right side
   27,729.27x = 567,896,300.56
5. Step 5: Solve for x
   x = 567,896,300.56/27,729.27
6. Step 6: Final answer
   x = 20,480.03