Finding the Fourth Proportional to 79,383.50, 109,557.90 and 50,729.54

Step by Step Solution

1. Step 1: Write the proportion equation
   79,383.50 : 109,557.90 = 50,729.54 : x
2. Step 2: Convert to fraction form
   79,383.50/109,557.90 = 50,729.54/x
3. Step 3: Cross multiply
   79,383.50x = 109,557.90 × 50,729.54
4. Step 4: Simplify right side
   79,383.50x = 5,557,821,322.58
5. Step 5: Solve for x
   x = 5,557,821,322.58/79,383.50
6. Step 6: Final answer
   x = 70,012.30