Finding the Fourth Proportional to 352,105.84, 485,968.17 and 208,944.82

Step by Step Solution

1. Step 1: Write the proportion equation
   352,105.84 : 485,968.17 = 208,944.82 : x
2. Step 2: Convert to fraction form
   352,105.84/485,968.17 = 208,944.82/x
3. Step 3: Cross multiply
   352,105.84x = 485,968.17 × 208,944.82
4. Step 4: Simplify right side
   352,105.84x = 101,540,531,806.38
5. Step 5: Solve for x
   x = 101,540,531,806.38/352,105.84
6. Step 6: Final answer
   x = 288,380.71