Finding the Fourth Proportional to 77,159.27, 106,456.17 and 50,291.97

Step by Step Solution

1. Step 1: Write the proportion equation
   77,159.27 : 106,456.17 = 50,291.97 : x
2. Step 2: Convert to fraction form
   77,159.27/106,456.17 = 50,291.97/x
3. Step 3: Cross multiply
   77,159.27x = 106,456.17 × 50,291.97
4. Step 4: Simplify right side
   77,159.27x = 5,353,890,256.50
5. Step 5: Solve for x
   x = 5,353,890,256.50/77,159.27
6. Step 6: Final answer
   x = 69,387.52