Finding the Fourth Proportional to 80,753.35, 120,833.78 and 67,393.34

Step by Step Solution

1. Step 1: Write the proportion equation
   80,753.35 : 120,833.78 = 67,393.34 : x
2. Step 2: Convert to fraction form
   80,753.35/120,833.78 = 67,393.34/x
3. Step 3: Cross multiply
   80,753.35x = 120,833.78 × 67,393.34
4. Step 4: Simplify right side
   80,753.35x = 8,143,392,019.03
5. Step 5: Solve for x
   x = 8,143,392,019.03/80,753.35
6. Step 6: Final answer
   x = 100,842.78