Finding the Fourth Proportional to 557,761.69, 769,493.82 and 412,914.18

Step by Step Solution

1. Step 1: Write the proportion equation
   557,761.69 : 769,493.82 = 412,914.18 : x
2. Step 2: Convert to fraction form
   557,761.69/769,493.82 = 412,914.18/x
3. Step 3: Cross multiply
   557,761.69x = 769,493.82 × 412,914.18
4. Step 4: Simplify right side
   557,761.69x = 317,734,909,700.37
5. Step 5: Solve for x
   x = 317,734,909,700.37/557,761.69
6. Step 6: Final answer
   x = 569,660.69