Finding the Fourth Proportional to 80,826.18, 111,543.59 and 45,016.20

Step by Step Solution

1. Step 1: Write the proportion equation
   80,826.18 : 111,543.59 = 45,016.20 : x
2. Step 2: Convert to fraction form
   80,826.18/111,543.59 = 45,016.20/x
3. Step 3: Cross multiply
   80,826.18x = 111,543.59 × 45,016.20
4. Step 4: Simplify right side
   80,826.18x = 5,021,268,331.08
5. Step 5: Solve for x
   x = 5,021,268,331.08/80,826.18
6. Step 6: Final answer
   x = 62,124.28