Finding the Fourth Proportional to 17,661, 24,375.42 and 10,209

Step by Step Solution

1. Step 1: Write the proportion equation
   17,661 : 24,375.42 = 10,209 : x
2. Step 2: Convert to fraction form
   17,661/24,375.42 = 10,209/x
3. Step 3: Cross multiply
   17,661x = 24,375.42 × 10,209
4. Step 4: Simplify right side
   17,661x = 248,848,662.78
5. Step 5: Solve for x
   x = 248,848,662.78/17,661
6. Step 6: Final answer
   x = 14,090.29