Finding the Fourth Proportional to 10,902.38, 16,353.72 and 3,111.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,902.38 : 16,353.72 = 3,111.19 : x
2. Step 2: Convert to fraction form
   10,902.38/16,353.72 = 3,111.19/x
3. Step 3: Cross multiply
   10,902.38x = 16,353.72 × 3,111.19
4. Step 4: Simplify right side
   10,902.38x = 50,879,489.24
5. Step 5: Solve for x
   x = 50,879,489.24/10,902.38
6. Step 6: Final answer
   x = 4,666.83