Finding the Fourth Proportional to 281,945.82, 422,877.57 and 82,212.54

Step by Step Solution

1. Step 1: Write the proportion equation
   281,945.82 : 422,877.57 = 82,212.54 : x
2. Step 2: Convert to fraction form
   281,945.82/422,877.57 = 82,212.54/x
3. Step 3: Cross multiply
   281,945.82x = 422,877.57 × 82,212.54
4. Step 4: Simplify right side
   281,945.82x = 34,765,839,138.73
5. Step 5: Solve for x
   x = 34,765,839,138.73/281,945.82
6. Step 6: Final answer
   x = 123,306.81