Finding the Fourth Proportional to 80,768.39, 111,441.33 and 67,896.61

Step by Step Solution

1. Step 1: Write the proportion equation
   80,768.39 : 111,441.33 = 67,896.61 : x
2. Step 2: Convert to fraction form
   80,768.39/111,441.33 = 67,896.61/x
3. Step 3: Cross multiply
   80,768.39x = 111,441.33 × 67,896.61
4. Step 4: Simplify right side
   80,768.39x = 7,566,488,242.29
5. Step 5: Solve for x
   x = 7,566,488,242.29/80,768.39
6. Step 6: Final answer
   x = 93,681.31