Finding the Fourth Proportional to 16,939.38, 25,404.27 and 10,690.03

Step by Step Solution

1. Step 1: Write the proportion equation
   16,939.38 : 25,404.27 = 10,690.03 : x
2. Step 2: Convert to fraction form
   16,939.38/25,404.27 = 10,690.03/x
3. Step 3: Cross multiply
   16,939.38x = 25,404.27 × 10,690.03
4. Step 4: Simplify right side
   16,939.38x = 271,572,227.96
5. Step 5: Solve for x
   x = 271,572,227.96/16,939.38
6. Step 6: Final answer
   x = 16,032.01