Finding the Fourth Proportional to 362,550.17, 500,453.98 and 311,357.33

Step by Step Solution

1. Step 1: Write the proportion equation
   362,550.17 : 500,453.98 = 311,357.33 : x
2. Step 2: Convert to fraction form
   362,550.17/500,453.98 = 311,357.33/x
3. Step 3: Cross multiply
   362,550.17x = 500,453.98 × 311,357.33
4. Step 4: Simplify right side
   362,550.17x = 155,820,013,443.89
5. Step 5: Solve for x
   x = 155,820,013,443.89/362,550.17
6. Step 6: Final answer
   x = 429,788.83