Finding the Fourth Proportional to 10,903.57, 16,355.50 and 3,112.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,903.57 : 16,355.50 = 3,112.38 : x
2. Step 2: Convert to fraction form
   10,903.57/16,355.50 = 3,112.38/x
3. Step 3: Cross multiply
   10,903.57x = 16,355.50 × 3,112.38
4. Step 4: Simplify right side
   10,903.57x = 50,904,531.09
5. Step 5: Solve for x
   x = 50,904,531.09/10,903.57
6. Step 6: Final answer
   x = 4,668.61