Finding the Fourth Proportional to 356,413.56, 491,456.69 and 227,147.46

Step by Step Solution

1. Step 1: Write the proportion equation
   356,413.56 : 491,456.69 = 227,147.46 : x
2. Step 2: Convert to fraction form
   356,413.56/491,456.69 = 227,147.46/x
3. Step 3: Cross multiply
   356,413.56x = 491,456.69 × 227,147.46
4. Step 4: Simplify right side
   356,413.56x = 111,633,137,697.77
5. Step 5: Solve for x
   x = 111,633,137,697.77/356,413.56
6. Step 6: Final answer
   x = 313,212.38