Finding the Fourth Proportional to 359,155.23, 495,637.59 and 198,016.05

Step by Step Solution

1. Step 1: Write the proportion equation
   359,155.23 : 495,637.59 = 198,016.05 : x
2. Step 2: Convert to fraction form
   359,155.23/495,637.59 = 198,016.05/x
3. Step 3: Cross multiply
   359,155.23x = 495,637.59 × 198,016.05
4. Step 4: Simplify right side
   359,155.23x = 98,144,196,990.44
5. Step 5: Solve for x
   x = 98,144,196,990.44/359,155.23
6. Step 6: Final answer
   x = 273,264.00