Finding the Fourth Proportional to 55,165, 82,763.82 and 31,808.20

Step by Step Solution

1. Step 1: Write the proportion equation
   55,165 : 82,763.82 = 31,808.20 : x
2. Step 2: Convert to fraction form
   55,165/82,763.82 = 31,808.20/x
3. Step 3: Cross multiply
   55,165x = 82,763.82 × 31,808.20
4. Step 4: Simplify right side
   55,165x = 2,632,568,139.32
5. Step 5: Solve for x
   x = 2,632,568,139.32/55,165
6. Step 6: Final answer
   x = 47,721.71