Finding the Fourth Proportional to 10,870.16, 16,305.23 and 3,078.97

Step by Step Solution

1. Step 1: Write the proportion equation
   10,870.16 : 16,305.23 = 3,078.97 : x
2. Step 2: Convert to fraction form
   10,870.16/16,305.23 = 3,078.97/x
3. Step 3: Cross multiply
   10,870.16x = 16,305.23 × 3,078.97
4. Step 4: Simplify right side
   10,870.16x = 50,203,314.01
5. Step 5: Solve for x
   x = 50,203,314.01/10,870.16
6. Step 6: Final answer
   x = 4,618.45