Finding the Fourth Proportional to 81,103.68, 111,861.41 and 69,792.23

Step by Step Solution

1. Step 1: Write the proportion equation
   81,103.68 : 111,861.41 = 69,792.23 : x
2. Step 2: Convert to fraction form
   81,103.68/111,861.41 = 69,792.23/x
3. Step 3: Cross multiply
   81,103.68x = 111,861.41 × 69,792.23
4. Step 4: Simplify right side
   81,103.68x = 7,807,057,185.54
5. Step 5: Solve for x
   x = 7,807,057,185.54/81,103.68
6. Step 6: Final answer
   x = 96,260.21