Finding the Fourth Proportional to 359,866, 496,658.82 and 208,963

Step by Step Solution

1. Step 1: Write the proportion equation
   359,866 : 496,658.82 = 208,963 : x
2. Step 2: Convert to fraction form
   359,866/496,658.82 = 208,963/x
3. Step 3: Cross multiply
   359,866x = 496,658.82 × 208,963
4. Step 4: Simplify right side
   359,866x = 103,783,317,003.66
5. Step 5: Solve for x
   x = 103,783,317,003.66/359,866
6. Step 6: Final answer
   x = 288,394.34