Finding the Fourth Proportional to 23,137.78, 31,930.79 and 13,067.73

Step by Step Solution

1. Step 1: Write the proportion equation
   23,137.78 : 31,930.79 = 13,067.73 : x
2. Step 2: Convert to fraction form
   23,137.78/31,930.79 = 13,067.73/x
3. Step 3: Cross multiply
   23,137.78x = 31,930.79 × 13,067.73
4. Step 4: Simplify right side
   23,137.78x = 417,262,942.41
5. Step 5: Solve for x
   x = 417,262,942.41/23,137.78
6. Step 6: Final answer
   x = 18,033.84