Finding the Fourth Proportional to 79,410.97, 109,638.42 and 49,228.55

Step by Step Solution

1. Step 1: Write the proportion equation
   79,410.97 : 109,638.42 = 49,228.55 : x
2. Step 2: Convert to fraction form
   79,410.97/109,638.42 = 49,228.55/x
3. Step 3: Cross multiply
   79,410.97x = 109,638.42 × 49,228.55
4. Step 4: Simplify right side
   79,410.97x = 5,397,340,440.89
5. Step 5: Solve for x
   x = 5,397,340,440.89/79,410.97
6. Step 6: Final answer
   x = 67,967.19