Finding the Fourth Proportional to 23,144.48, 31,940.76 and 13,069.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,144.48 : 31,940.76 = 13,069.22 : x
2. Step 2: Convert to fraction form
   23,144.48/31,940.76 = 13,069.22/x
3. Step 3: Cross multiply
   23,144.48x = 31,940.76 × 13,069.22
4. Step 4: Simplify right side
   23,144.48x = 417,440,819.41
5. Step 5: Solve for x
   x = 417,440,819.41/23,144.48
6. Step 6: Final answer
   x = 18,036.30