Finding the Fourth Proportional to 39,418.50, 54,399.27 and 22,196.79

Step by Step Solution

1. Step 1: Write the proportion equation
   39,418.50 : 54,399.27 = 22,196.79 : x
2. Step 2: Convert to fraction form
   39,418.50/54,399.27 = 22,196.79/x
3. Step 3: Cross multiply
   39,418.50x = 54,399.27 × 22,196.79
4. Step 4: Simplify right side
   39,418.50x = 1,207,489,172.34
5. Step 5: Solve for x
   x = 1,207,489,172.34/39,418.50
6. Step 6: Final answer
   x = 30,632.55