Finding the Fourth Proportional to 80,693.85, 111,380.96 and 53,836.29

Step by Step Solution

1. Step 1: Write the proportion equation
   80,693.85 : 111,380.96 = 53,836.29 : x
2. Step 2: Convert to fraction form
   80,693.85/111,380.96 = 53,836.29/x
3. Step 3: Cross multiply
   80,693.85x = 111,380.96 × 53,836.29
4. Step 4: Simplify right side
   80,693.85x = 5,996,337,393.86
5. Step 5: Solve for x
   x = 5,996,337,393.86/80,693.85
6. Step 6: Final answer
   x = 74,309.72