Finding the Fourth Proportional to 31,067.25, 42,875.22 and 17,642.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,067.25 : 42,875.22 = 17,642.71 : x
2. Step 2: Convert to fraction form
   31,067.25/42,875.22 = 17,642.71/x
3. Step 3: Cross multiply
   31,067.25x = 42,875.22 × 17,642.71
4. Step 4: Simplify right side
   31,067.25x = 756,435,192.40
5. Step 5: Solve for x
   x = 756,435,192.40/31,067.25
6. Step 6: Final answer
   x = 24,348.32