Finding the Fourth Proportional to 10,904.38, 16,356.72 and 3,113.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,904.38 : 16,356.72 = 3,113.18 : x
2. Step 2: Convert to fraction form
   10,904.38/16,356.72 = 3,113.18/x
3. Step 3: Cross multiply
   10,904.38x = 16,356.72 × 3,113.18
4. Step 4: Simplify right side
   10,904.38x = 50,921,413.57
5. Step 5: Solve for x
   x = 50,921,413.57/10,904.38
6. Step 6: Final answer
   x = 4,669.81