Finding the Fourth Proportional to 78,871.18, 108,854.72 and 50,160.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,871.18 : 108,854.72 = 50,160.92 : x
2. Step 2: Convert to fraction form
   78,871.18/108,854.72 = 50,160.92/x
3. Step 3: Cross multiply
   78,871.18x = 108,854.72 × 50,160.92
4. Step 4: Simplify right side
   78,871.18x = 5,460,252,901.54
5. Step 5: Solve for x
   x = 5,460,252,901.54/78,871.18
6. Step 6: Final answer
   x = 69,230.01