Finding the Fourth Proportional to 82,641, 123,912.20 and 32,728.26

Step by Step Solution

1. Step 1: Write the proportion equation
   82,641 : 123,912.20 = 32,728.26 : x
2. Step 2: Convert to fraction form
   82,641/123,912.20 = 32,728.26/x
3. Step 3: Cross multiply
   82,641x = 123,912.20 × 32,728.26
4. Step 4: Simplify right side
   82,641x = 4,055,430,698.77
5. Step 5: Solve for x
   x = 4,055,430,698.77/82,641
6. Step 6: Final answer
   x = 49,072.87