Finding the Fourth Proportional to 17,865.40, 24,654.42 and 9,908.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,865.40 : 24,654.42 = 9,908.28 : x
2. Step 2: Convert to fraction form
   17,865.40/24,654.42 = 9,908.28/x
3. Step 3: Cross multiply
   17,865.40x = 24,654.42 × 9,908.28
4. Step 4: Simplify right side
   17,865.40x = 244,282,896.60
5. Step 5: Solve for x
   x = 244,282,896.60/17,865.40
6. Step 6: Final answer
   x = 13,673.52