Finding the Fourth Proportional to 492,196.50, 679,231.63 and 265,842

Step by Step Solution

1. Step 1: Write the proportion equation
   492,196.50 : 679,231.63 = 265,842 : x
2. Step 2: Convert to fraction form
   492,196.50/679,231.63 = 265,842/x
3. Step 3: Cross multiply
   492,196.50x = 679,231.63 × 265,842
4. Step 4: Simplify right side
   492,196.50x = 180,568,293,819.40
5. Step 5: Solve for x
   x = 180,568,293,819.40/492,196.50
6. Step 6: Final answer
   x = 366,862.21