Finding the Fourth Proportional to 359,796.50, 496,562.94 and 208,893.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,796.50 : 496,562.94 = 208,893.50 : x
2. Step 2: Convert to fraction form
   359,796.50/496,562.94 = 208,893.50/x
3. Step 3: Cross multiply
   359,796.50x = 496,562.94 × 208,893.50
4. Step 4: Simplify right side
   359,796.50x = 103,728,770,506.89
5. Step 5: Solve for x
   x = 103,728,770,506.89/359,796.50
6. Step 6: Final answer
   x = 288,298.44