Finding the Fourth Proportional to 79,266.76, 109,399.30 and 49,061.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,266.76 : 109,399.30 = 49,061.72 : x
2. Step 2: Convert to fraction form
   79,266.76/109,399.30 = 49,061.72/x
3. Step 3: Cross multiply
   79,266.76x = 109,399.30 × 49,061.72
4. Step 4: Simplify right side
   79,266.76x = 5,367,317,824.80
5. Step 5: Solve for x
   x = 5,367,317,824.80/79,266.76
6. Step 6: Final answer
   x = 67,712.09