Finding the Fourth Proportional to 79,628.72, 109,890.24 and 43,821.32

Step by Step Solution

1. Step 1: Write the proportion equation
   79,628.72 : 109,890.24 = 43,821.32 : x
2. Step 2: Convert to fraction form
   79,628.72/109,890.24 = 43,821.32/x
3. Step 3: Cross multiply
   79,628.72x = 109,890.24 × 43,821.32
4. Step 4: Simplify right side
   79,628.72x = 4,815,535,371.92
5. Step 5: Solve for x
   x = 4,815,535,371.92/79,628.72
6. Step 6: Final answer
   x = 60,474.86