Finding the Fourth Proportional to 72,086.39, 108,140.82 and 34,639.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,086.39 : 108,140.82 = 34,639.48 : x
2. Step 2: Convert to fraction form
   72,086.39/108,140.82 = 34,639.48/x
3. Step 3: Cross multiply
   72,086.39x = 108,140.82 × 34,639.48
4. Step 4: Simplify right side
   72,086.39x = 3,745,941,771.57
5. Step 5: Solve for x
   x = 3,745,941,771.57/72,086.39
6. Step 6: Final answer
   x = 51,964.62