Finding the Fourth Proportional to 79,401.78, 109,625.73 and 49,219.20

Step by Step Solution

1. Step 1: Write the proportion equation
   79,401.78 : 109,625.73 = 49,219.20 : x
2. Step 2: Convert to fraction form
   79,401.78/109,625.73 = 49,219.20/x
3. Step 3: Cross multiply
   79,401.78x = 109,625.73 × 49,219.20
4. Step 4: Simplify right side
   79,401.78x = 5,395,690,730.02
5. Step 5: Solve for x
   x = 5,395,690,730.02/79,401.78
6. Step 6: Final answer
   x = 67,954.28