Finding the Fourth Proportional to 22,196.48, 30,626.10 and 13,242.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.48 : 30,626.10 = 13,242.23 : x
2. Step 2: Convert to fraction form
   22,196.48/30,626.10 = 13,242.23/x
3. Step 3: Cross multiply
   22,196.48x = 30,626.10 × 13,242.23
4. Step 4: Simplify right side
   22,196.48x = 405,557,994.19
5. Step 5: Solve for x
   x = 405,557,994.19/22,196.48
6. Step 6: Final answer
   x = 18,271.27