Finding the Fourth Proportional to 353,814.49, 488,259.15 and 200,851.33

Step by Step Solution

1. Step 1: Write the proportion equation
   353,814.49 : 488,259.15 = 200,851.33 : x
2. Step 2: Convert to fraction form
   353,814.49/488,259.15 = 200,851.33/x
3. Step 3: Cross multiply
   353,814.49x = 488,259.15 × 200,851.33
4. Step 4: Simplify right side
   353,814.49x = 98,067,499,662.17
5. Step 5: Solve for x
   x = 98,067,499,662.17/353,814.49
6. Step 6: Final answer
   x = 277,172.08