Finding the Fourth Proportional to 16,974.18, 25,424.37 and 10,380.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,974.18 : 25,424.37 = 10,380.42 : x
2. Step 2: Convert to fraction form
   16,974.18/25,424.37 = 10,380.42/x
3. Step 3: Cross multiply
   16,974.18x = 25,424.37 × 10,380.42
4. Step 4: Simplify right side
   16,974.18x = 263,915,638.84
5. Step 5: Solve for x
   x = 263,915,638.84/16,974.18
6. Step 6: Final answer
   x = 15,548.06