Finding the Fourth Proportional to 359,783.98, 496,498.71 and 198,635.59

Step by Step Solution

1. Step 1: Write the proportion equation
   359,783.98 : 496,498.71 = 198,635.59 : x
2. Step 2: Convert to fraction form
   359,783.98/496,498.71 = 198,635.59/x
3. Step 3: Cross multiply
   359,783.98x = 496,498.71 × 198,635.59
4. Step 4: Simplify right side
   359,783.98x = 98,622,315,560.60
5. Step 5: Solve for x
   x = 98,622,315,560.60/359,783.98
6. Step 6: Final answer
   x = 274,115.36