Finding the Fourth Proportional to 31,067.82, 42,836.49 and 25,381.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,067.82 : 42,836.49 = 25,381.62 : x
2. Step 2: Convert to fraction form
   31,067.82/42,836.49 = 25,381.62/x
3. Step 3: Cross multiply
   31,067.82x = 42,836.49 × 25,381.62
4. Step 4: Simplify right side
   31,067.82x = 1,087,259,511.31
5. Step 5: Solve for x
   x = 1,087,259,511.31/31,067.82
6. Step 6: Final answer
   x = 34,996.32