Finding the Fourth Proportional to 22,719.44, 31,351.89 and 12,647.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,719.44 : 31,351.89 = 12,647.59 : x
2. Step 2: Convert to fraction form
   22,719.44/31,351.89 = 12,647.59/x
3. Step 3: Cross multiply
   22,719.44x = 31,351.89 × 12,647.59
4. Step 4: Simplify right side
   22,719.44x = 396,525,693.69
5. Step 5: Solve for x
   x = 396,525,693.69/22,719.44
6. Step 6: Final answer
   x = 17,453.15