Finding the Fourth Proportional to 359,738.84, 496,426.56 and 198,590.42

Step by Step Solution

1. Step 1: Write the proportion equation
   359,738.84 : 496,426.56 = 198,590.42 : x
2. Step 2: Convert to fraction form
   359,738.84/496,426.56 = 198,590.42/x
3. Step 3: Cross multiply
   359,738.84x = 496,426.56 × 198,590.42
4. Step 4: Simplify right side
   359,738.84x = 98,585,559,049.56
5. Step 5: Solve for x
   x = 98,585,559,049.56/359,738.84
6. Step 6: Final answer
   x = 274,047.58