Finding the Fourth Proportional to 41,756.86, 62,645.52 and 13,678.42

Step by Step Solution

1. Step 1: Write the proportion equation
   41,756.86 : 62,645.52 = 13,678.42 : x
2. Step 2: Convert to fraction form
   41,756.86/62,645.52 = 13,678.42/x
3. Step 3: Cross multiply
   41,756.86x = 62,645.52 × 13,678.42
4. Step 4: Simplify right side
   41,756.86x = 856,891,733.68
5. Step 5: Solve for x
   x = 856,891,733.68/41,756.86
6. Step 6: Final answer
   x = 20,520.98