Finding the Fourth Proportional to 22,196.08, 30,616.33 and 13,578.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.08 : 30,616.33 = 13,578.23 : x
2. Step 2: Convert to fraction form
   22,196.08/30,616.33 = 13,578.23/x
3. Step 3: Cross multiply
   22,196.08x = 30,616.33 × 13,578.23
4. Step 4: Simplify right side
   22,196.08x = 415,715,638.55
5. Step 5: Solve for x
   x = 415,715,638.55/22,196.08
6. Step 6: Final answer
   x = 18,729.24