Finding the Fourth Proportional to 16,939.38, 25,404.27 and 10,690.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,939.38 : 25,404.27 = 10,690.02 : x
2. Step 2: Convert to fraction form
   16,939.38/25,404.27 = 10,690.02/x
3. Step 3: Cross multiply
   16,939.38x = 25,404.27 × 10,690.02
4. Step 4: Simplify right side
   16,939.38x = 271,572,154.39
5. Step 5: Solve for x
   x = 271,572,154.39/16,939.38
6. Step 6: Final answer
   x = 16,032.00