Finding the Fourth Proportional to 23,167, 31,970.46 and 12,556.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,167 : 31,970.46 = 12,556.60 : x
2. Step 2: Convert to fraction form
   23,167/31,970.46 = 12,556.60/x
3. Step 3: Cross multiply
   23,167x = 31,970.46 × 12,556.60
4. Step 4: Simplify right side
   23,167x = 401,440,278.04
5. Step 5: Solve for x
   x = 401,440,278.04/23,167
6. Step 6: Final answer
   x = 17,328.11