Finding the Fourth Proportional to 279,311.98, 419,175.83 and 137,233.52

Step by Step Solution

1. Step 1: Write the proportion equation
   279,311.98 : 419,175.83 = 137,233.52 : x
2. Step 2: Convert to fraction form
   279,311.98/419,175.83 = 137,233.52/x
3. Step 3: Cross multiply
   279,311.98x = 419,175.83 × 137,233.52
4. Step 4: Simplify right side
   279,311.98x = 57,524,976,040.85
5. Step 5: Solve for x
   x = 57,524,976,040.85/279,311.98
6. Step 6: Final answer
   x = 205,952.41