Finding the Fourth Proportional to 10,900.38, 16,350.50 and 3,109.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.38 : 16,350.50 = 3,109.16 : x
2. Step 2: Convert to fraction form
   10,900.38/16,350.50 = 3,109.16/x
3. Step 3: Cross multiply
   10,900.38x = 16,350.50 × 3,109.16
4. Step 4: Simplify right side
   10,900.38x = 50,836,320.58
5. Step 5: Solve for x
   x = 50,836,320.58/10,900.38
6. Step 6: Final answer
   x = 4,663.72