Finding the Fourth Proportional to 10,922.28, 16,383.18 and 3,131.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,922.28 : 16,383.18 = 3,131.16 : x
2. Step 2: Convert to fraction form
   10,922.28/16,383.18 = 3,131.16/x
3. Step 3: Cross multiply
   10,922.28x = 16,383.18 × 3,131.16
4. Step 4: Simplify right side
   10,922.28x = 51,298,357.89
5. Step 5: Solve for x
   x = 51,298,357.89/10,922.28
6. Step 6: Final answer
   x = 4,696.67