Finding the Fourth Proportional to 81,057.86, 111,859.41 and 47,074.69

Step by Step Solution

1. Step 1: Write the proportion equation
   81,057.86 : 111,859.41 = 47,074.69 : x
2. Step 2: Convert to fraction form
   81,057.86/111,859.41 = 47,074.69/x
3. Step 3: Cross multiply
   81,057.86x = 111,859.41 × 47,074.69
4. Step 4: Simplify right side
   81,057.86x = 5,265,747,365.69
5. Step 5: Solve for x
   x = 5,265,747,365.69/81,057.86
6. Step 6: Final answer
   x = 64,962.82