Finding the Fourth Proportional to 281,611.76, 422,472.78 and 123,839.69

Step by Step Solution

1. Step 1: Write the proportion equation
   281,611.76 : 422,472.78 = 123,839.69 : x
2. Step 2: Convert to fraction form
   281,611.76/422,472.78 = 123,839.69/x
3. Step 3: Cross multiply
   281,611.76x = 422,472.78 × 123,839.69
4. Step 4: Simplify right side
   281,611.76x = 52,318,895,996.27
5. Step 5: Solve for x
   x = 52,318,895,996.27/281,611.76
6. Step 6: Final answer
   x = 185,783.78