Finding the Fourth Proportional to 78,938.25, 108,965.94 and 48,735.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,938.25 : 108,965.94 = 48,735.78 : x
2. Step 2: Convert to fraction form
   78,938.25/108,965.94 = 48,735.78/x
3. Step 3: Cross multiply
   78,938.25x = 108,965.94 × 48,735.78
4. Step 4: Simplify right side
   78,938.25x = 5,310,540,079.33
5. Step 5: Solve for x
   x = 5,310,540,079.33/78,938.25
6. Step 6: Final answer
   x = 67,274.61