Finding the Fourth Proportional to 79,601.20, 109,850.57 and 45,609

Step by Step Solution

1. Step 1: Write the proportion equation
   79,601.20 : 109,850.57 = 45,609 : x
2. Step 2: Convert to fraction form
   79,601.20/109,850.57 = 45,609/x
3. Step 3: Cross multiply
   79,601.20x = 109,850.57 × 45,609
4. Step 4: Simplify right side
   79,601.20x = 5,010,174,647.13
5. Step 5: Solve for x
   x = 5,010,174,647.13/79,601.20
6. Step 6: Final answer
   x = 62,940.94