Finding the Fourth Proportional to 499,022.67, 688,568.00 and 284,166.03

Step by Step Solution

1. Step 1: Write the proportion equation
   499,022.67 : 688,568.00 = 284,166.03 : x
2. Step 2: Convert to fraction form
   499,022.67/688,568.00 = 284,166.03/x
3. Step 3: Cross multiply
   499,022.67x = 688,568.00 × 284,166.03
4. Step 4: Simplify right side
   499,022.67x = 195,667,633,524.21
5. Step 5: Solve for x
   x = 195,667,633,524.21/499,022.67
6. Step 6: Final answer
   x = 392,101.69