Finding the Fourth Proportional to 78,734.46, 108,653.90 and 50,456.55

Step by Step Solution

1. Step 1: Write the proportion equation
   78,734.46 : 108,653.90 = 50,456.55 : x
2. Step 2: Convert to fraction form
   78,734.46/108,653.90 = 50,456.55/x
3. Step 3: Cross multiply
   78,734.46x = 108,653.90 × 50,456.55
4. Step 4: Simplify right side
   78,734.46x = 5,482,300,685.76
5. Step 5: Solve for x
   x = 5,482,300,685.76/78,734.46
6. Step 6: Final answer
   x = 69,630.26