Finding the Fourth Proportional to 22,399.82, 30,911.74 and 12,968.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,399.82 : 30,911.74 = 12,968.18 : x
2. Step 2: Convert to fraction form
   22,399.82/30,911.74 = 12,968.18/x
3. Step 3: Cross multiply
   22,399.82x = 30,911.74 × 12,968.18
4. Step 4: Simplify right side
   22,399.82x = 400,868,821.45
5. Step 5: Solve for x
   x = 400,868,821.45/22,399.82
6. Step 6: Final answer
   x = 17,896.08