Finding the Fourth Proportional to 55,078.72, 82,513.92 and 31,634.08

Step by Step Solution

1. Step 1: Write the proportion equation
   55,078.72 : 82,513.92 = 31,634.08 : x
2. Step 2: Convert to fraction form
   55,078.72/82,513.92 = 31,634.08/x
3. Step 3: Cross multiply
   55,078.72x = 82,513.92 × 31,634.08
4. Step 4: Simplify right side
   55,078.72x = 2,610,251,946.39
5. Step 5: Solve for x
   x = 2,610,251,946.39/55,078.72
6. Step 6: Final answer
   x = 47,391.30