Finding the Fourth Proportional to 23,174.88, 31,981.55 and 12,564.54

Step by Step Solution

1. Step 1: Write the proportion equation
   23,174.88 : 31,981.55 = 12,564.54 : x
2. Step 2: Convert to fraction form
   23,174.88/31,981.55 = 12,564.54/x
3. Step 3: Cross multiply
   23,174.88x = 31,981.55 × 12,564.54
4. Step 4: Simplify right side
   23,174.88x = 401,833,401.41
5. Step 5: Solve for x
   x = 401,833,401.41/23,174.88
6. Step 6: Final answer
   x = 17,339.18