Finding the Fourth Proportional to 20,862.74, 31,293.78 and 5,067.89

Step by Step Solution

1. Step 1: Write the proportion equation
   20,862.74 : 31,293.78 = 5,067.89 : x
2. Step 2: Convert to fraction form
   20,862.74/31,293.78 = 5,067.89/x
3. Step 3: Cross multiply
   20,862.74x = 31,293.78 × 5,067.89
4. Step 4: Simplify right side
   20,862.74x = 158,593,434.72
5. Step 5: Solve for x
   x = 158,593,434.72/20,862.74
6. Step 6: Final answer
   x = 7,601.75