Finding the Fourth Proportional to 78,795.50, 108,718.40 and 50,539.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,795.50 : 108,718.40 = 50,539.46 : x
2. Step 2: Convert to fraction form
   78,795.50/108,718.40 = 50,539.46/x
3. Step 3: Cross multiply
   78,795.50x = 108,718.40 × 50,539.46
4. Step 4: Simplify right side
   78,795.50x = 5,494,568,810.82
5. Step 5: Solve for x
   x = 5,494,568,810.82/78,795.50
6. Step 6: Final answer
   x = 69,732.02