Finding the Fourth Proportional to 16,940.38, 25,405.76 and 10,691.03

Step by Step Solution

1. Step 1: Write the proportion equation
   16,940.38 : 25,405.76 = 10,691.03 : x
2. Step 2: Convert to fraction form
   16,940.38/25,405.76 = 10,691.03/x
3. Step 3: Cross multiply
   16,940.38x = 25,405.76 × 10,691.03
4. Step 4: Simplify right side
   16,940.38x = 271,613,742.33
5. Step 5: Solve for x
   x = 271,613,742.33/16,940.38
6. Step 6: Final answer
   x = 16,033.51