Finding the Fourth Proportional to 79,323.36, 109,540.32 and 51,078.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,323.36 : 109,540.32 = 51,078.72 : x
2. Step 2: Convert to fraction form
   79,323.36/109,540.32 = 51,078.72/x
3. Step 3: Cross multiply
   79,323.36x = 109,540.32 × 51,078.72
4. Step 4: Simplify right side
   79,323.36x = 5,595,179,333.99
5. Step 5: Solve for x
   x = 5,595,179,333.99/79,323.36
6. Step 6: Final answer
   x = 70,536.34