Finding the Fourth Proportional to 55,169, 82,769.82 and 31,812.20

Step by Step Solution

1. Step 1: Write the proportion equation
   55,169 : 82,769.82 = 31,812.20 : x
2. Step 2: Convert to fraction form
   55,169/82,769.82 = 31,812.20/x
3. Step 3: Cross multiply
   55,169x = 82,769.82 × 31,812.20
4. Step 4: Simplify right side
   55,169x = 2,633,090,067.80
5. Step 5: Solve for x
   x = 2,633,090,067.80/55,169
6. Step 6: Final answer
   x = 47,727.71