Finding the Fourth Proportional to 80,826.57, 111,502.04 and 62,798.20

Step by Step Solution

1. Step 1: Write the proportion equation
   80,826.57 : 111,502.04 = 62,798.20 : x
2. Step 2: Convert to fraction form
   80,826.57/111,502.04 = 62,798.20/x
3. Step 3: Cross multiply
   80,826.57x = 111,502.04 × 62,798.20
4. Step 4: Simplify right side
   80,826.57x = 7,002,126,815.58
5. Step 5: Solve for x
   x = 7,002,126,815.58/80,826.57
6. Step 6: Final answer
   x = 86,631.50