Finding the Fourth Proportional to 404,211.69, 606,150.50 and 137,993.58

Step by Step Solution

1. Step 1: Write the proportion equation
   404,211.69 : 606,150.50 = 137,993.58 : x
2. Step 2: Convert to fraction form
   404,211.69/606,150.50 = 137,993.58/x
3. Step 3: Cross multiply
   404,211.69x = 606,150.50 × 137,993.58
4. Step 4: Simplify right side
   404,211.69x = 83,644,876,823.82
5. Step 5: Solve for x
   x = 83,644,876,823.82/404,211.69
6. Step 6: Final answer
   x = 206,933.34