Finding the Fourth Proportional to 41,693.98, 62,542.79 and 13,613.81

Step by Step Solution

1. Step 1: Write the proportion equation
   41,693.98 : 62,542.79 = 13,613.81 : x
2. Step 2: Convert to fraction form
   41,693.98/62,542.79 = 13,613.81/x
3. Step 3: Cross multiply
   41,693.98x = 62,542.79 × 13,613.81
4. Step 4: Simplify right side
   41,693.98x = 851,445,591.86
5. Step 5: Solve for x
   x = 851,445,591.86/41,693.98
6. Step 6: Final answer
   x = 20,421.31