Finding the Fourth Proportional to 17,865.59, 24,654.47 and 9,909

Step by Step Solution

1. Step 1: Write the proportion equation
   17,865.59 : 24,654.47 = 9,909 : x
2. Step 2: Convert to fraction form
   17,865.59/24,654.47 = 9,909/x
3. Step 3: Cross multiply
   17,865.59x = 24,654.47 × 9,909
4. Step 4: Simplify right side
   17,865.59x = 244,301,093.69
5. Step 5: Solve for x
   x = 244,301,093.69/17,865.59
6. Step 6: Final answer
   x = 13,674.40