Finding the Fourth Proportional to 201,196.30, 301,685.10 and 82,879.60

Step by Step Solution

1. Step 1: Write the proportion equation
   201,196.30 : 301,685.10 = 82,879.60 : x
2. Step 2: Convert to fraction form
   201,196.30/301,685.10 = 82,879.60/x
3. Step 3: Cross multiply
   201,196.30x = 301,685.10 × 82,879.60
4. Step 4: Simplify right side
   201,196.30x = 25,003,540,413.96
5. Step 5: Solve for x
   x = 25,003,540,413.96/201,196.30
6. Step 6: Final answer
   x = 124,274.36