Finding the Fourth Proportional to 359,164.56, 495,669.36 and 198,019.30

Step by Step Solution

1. Step 1: Write the proportion equation
   359,164.56 : 495,669.36 = 198,019.30 : x
2. Step 2: Convert to fraction form
   359,164.56/495,669.36 = 198,019.30/x
3. Step 3: Cross multiply
   359,164.56x = 495,669.36 × 198,019.30
4. Step 4: Simplify right side
   359,164.56x = 98,152,099,698.65
5. Step 5: Solve for x
   x = 98,152,099,698.65/359,164.56
6. Step 6: Final answer
   x = 273,278.91