Finding the Fourth Proportional to 359,796.96, 496,516.50 and 198,648.54

Step by Step Solution

1. Step 1: Write the proportion equation
   359,796.96 : 496,516.50 = 198,648.54 : x
2. Step 2: Convert to fraction form
   359,796.96/496,516.50 = 198,648.54/x
3. Step 3: Cross multiply
   359,796.96x = 496,516.50 × 198,648.54
4. Step 4: Simplify right side
   359,796.96x = 98,632,277,810.91
5. Step 5: Solve for x
   x = 98,632,277,810.91/359,796.96
6. Step 6: Final answer
   x = 274,133.16