Finding the Fourth Proportional to 359,632.32, 496,290.15 and 198,487.36

Step by Step Solution

1. Step 1: Write the proportion equation
   359,632.32 : 496,290.15 = 198,487.36 : x
2. Step 2: Convert to fraction form
   359,632.32/496,290.15 = 198,487.36/x
3. Step 3: Cross multiply
   359,632.32x = 496,290.15 × 198,487.36
4. Step 4: Simplify right side
   359,632.32x = 98,507,321,667.50
5. Step 5: Solve for x
   x = 98,507,321,667.50/359,632.32
6. Step 6: Final answer
   x = 273,911.20