Finding the Fourth Proportional to 359,817.56, 496,567.59 and 198,672.02

Step by Step Solution

1. Step 1: Write the proportion equation
   359,817.56 : 496,567.59 = 198,672.02 : x
2. Step 2: Convert to fraction form
   359,817.56/496,567.59 = 198,672.02/x
3. Step 3: Cross multiply
   359,817.56x = 496,567.59 × 198,672.02
4. Step 4: Simplify right side
   359,817.56x = 98,654,086,171.83
5. Step 5: Solve for x
   x = 98,654,086,171.83/359,817.56
6. Step 6: Final answer
   x = 274,178.08