Finding the Fourth Proportional to 23,271.78, 32,115.30 and 12,661.39

Step by Step Solution

1. Step 1: Write the proportion equation
   23,271.78 : 32,115.30 = 12,661.39 : x
2. Step 2: Convert to fraction form
   23,271.78/32,115.30 = 12,661.39/x
3. Step 3: Cross multiply
   23,271.78x = 32,115.30 × 12,661.39
4. Step 4: Simplify right side
   23,271.78x = 406,624,338.27
5. Step 5: Solve for x
   x = 406,624,338.27/23,271.78
6. Step 6: Final answer
   x = 17,472.85