Finding the Fourth Proportional to 23,241.21, 32,072.78 and 13,171.57

Step by Step Solution

1. Step 1: Write the proportion equation
   23,241.21 : 32,072.78 = 13,171.57 : x
2. Step 2: Convert to fraction form
   23,241.21/32,072.78 = 13,171.57/x
3. Step 3: Cross multiply
   23,241.21x = 32,072.78 × 13,171.57
4. Step 4: Simplify right side
   23,241.21x = 422,448,866.86
5. Step 5: Solve for x
   x = 422,448,866.86/23,241.21
6. Step 6: Final answer
   x = 18,176.72