Finding the Fourth Proportional to 41,648, 62,478.50 and 13,561.42

Step by Step Solution

1. Step 1: Write the proportion equation
   41,648 : 62,478.50 = 13,561.42 : x
2. Step 2: Convert to fraction form
   41,648/62,478.50 = 13,561.42/x
3. Step 3: Cross multiply
   41,648x = 62,478.50 × 13,561.42
4. Step 4: Simplify right side
   41,648x = 847,297,179.47
5. Step 5: Solve for x
   x = 847,297,179.47/41,648
6. Step 6: Final answer
   x = 20,344.25