Finding the Fourth Proportional to 417,123.98, 623,972.77 and 333,048.51

Step by Step Solution

1. Step 1: Write the proportion equation
   417,123.98 : 623,972.77 = 333,048.51 : x
2. Step 2: Convert to fraction form
   417,123.98/623,972.77 = 333,048.51/x
3. Step 3: Cross multiply
   417,123.98x = 623,972.77 × 333,048.51
4. Step 4: Simplify right side
   417,123.98x = 207,813,200,496.45
5. Step 5: Solve for x
   x = 207,813,200,496.45/417,123.98
6. Step 6: Final answer
   x = 498,204.88