Finding the Fourth Proportional to 81,957.60, 113,105.70 and 50,116.52

Step by Step Solution

1. Step 1: Write the proportion equation
   81,957.60 : 113,105.70 = 50,116.52 : x
2. Step 2: Convert to fraction form
   81,957.60/113,105.70 = 50,116.52/x
3. Step 3: Cross multiply
   81,957.60x = 113,105.70 × 50,116.52
4. Step 4: Simplify right side
   81,957.60x = 5,668,464,076.16
5. Step 5: Solve for x
   x = 5,668,464,076.16/81,957.60
6. Step 6: Final answer
   x = 69,163.37