Finding the Fourth Proportional to 78,481.98, 108,315.63 and 50,269.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,481.98 : 108,315.63 = 50,269.68 : x
2. Step 2: Convert to fraction form
   78,481.98/108,315.63 = 50,269.68/x
3. Step 3: Cross multiply
   78,481.98x = 108,315.63 × 50,269.68
4. Step 4: Simplify right side
   78,481.98x = 5,444,992,059.10
5. Step 5: Solve for x
   x = 5,444,992,059.10/78,481.98
6. Step 6: Final answer
   x = 69,378.88