Finding the Fourth Proportional to 22,389.36, 30,896.88 and 12,317.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,389.36 : 30,896.88 = 12,317.22 : x
2. Step 2: Convert to fraction form
   22,389.36/30,896.88 = 12,317.22/x
3. Step 3: Cross multiply
   22,389.36x = 30,896.88 × 12,317.22
4. Step 4: Simplify right side
   22,389.36x = 380,563,668.27
5. Step 5: Solve for x
   x = 380,563,668.27/22,389.36
6. Step 6: Final answer
   x = 16,997.52