Finding the Fourth Proportional to 557,667.50, 769,579.57 and 303,018.62

Step by Step Solution

1. Step 1: Write the proportion equation
   557,667.50 : 769,579.57 = 303,018.62 : x
2. Step 2: Convert to fraction form
   557,667.50/769,579.57 = 303,018.62/x
3. Step 3: Cross multiply
   557,667.50x = 769,579.57 × 303,018.62
4. Step 4: Simplify right side
   557,667.50x = 233,196,940,448.00
5. Step 5: Solve for x
   x = 233,196,940,448.00/557,667.50
6. Step 6: Final answer
   x = 418,164.84