Finding the Fourth Proportional to 359,798.50, 496,565.67 and 208,895.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,798.50 : 496,565.67 = 208,895.50 : x
2. Step 2: Convert to fraction form
   359,798.50/496,565.67 = 208,895.50/x
3. Step 3: Cross multiply
   359,798.50x = 496,565.67 × 208,895.50
4. Step 4: Simplify right side
   359,798.50x = 103,730,333,917.49
5. Step 5: Solve for x
   x = 103,730,333,917.49/359,798.50
6. Step 6: Final answer
   x = 288,301.19