Finding the Fourth Proportional to 50,408.12, 69,413.04 and 49,289.31

Step by Step Solution

1. Step 1: Write the proportion equation
   50,408.12 : 69,413.04 = 49,289.31 : x
2. Step 2: Convert to fraction form
   50,408.12/69,413.04 = 49,289.31/x
3. Step 3: Cross multiply
   50,408.12x = 69,413.04 × 49,289.31
4. Step 4: Simplify right side
   50,408.12x = 3,421,320,846.60
5. Step 5: Solve for x
   x = 3,421,320,846.60/50,408.12
6. Step 6: Final answer
   x = 67,872.41