Finding the Fourth Proportional to 356,978.25, 492,636.47 and 195,841.53

Step by Step Solution

1. Step 1: Write the proportion equation
   356,978.25 : 492,636.47 = 195,841.53 : x
2. Step 2: Convert to fraction form
   356,978.25/492,636.47 = 195,841.53/x
3. Step 3: Cross multiply
   356,978.25x = 492,636.47 × 195,841.53
4. Step 4: Simplify right side
   356,978.25x = 96,478,679,039.39
5. Step 5: Solve for x
   x = 96,478,679,039.39/356,978.25
6. Step 6: Final answer
   x = 270,264.87