Finding the Fourth Proportional to 10,680.69, 16,019.15 and 2,890.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,680.69 : 16,019.15 = 2,890.11 : x
2. Step 2: Convert to fraction form
   10,680.69/16,019.15 = 2,890.11/x
3. Step 3: Cross multiply
   10,680.69x = 16,019.15 × 2,890.11
4. Step 4: Simplify right side
   10,680.69x = 46,297,091.16
5. Step 5: Solve for x
   x = 46,297,091.16/10,680.69
6. Step 6: Final answer
   x = 4,334.65