Finding the Fourth Proportional to 120,996.27, 166,978.71 and 67,283.55

Step by Step Solution

1. Step 1: Write the proportion equation
   120,996.27 : 166,978.71 = 67,283.55 : x
2. Step 2: Convert to fraction form
   120,996.27/166,978.71 = 67,283.55/x
3. Step 3: Cross multiply
   120,996.27x = 166,978.71 × 67,283.55
4. Step 4: Simplify right side
   120,996.27x = 11,234,920,383.22
5. Step 5: Solve for x
   x = 11,234,920,383.22/120,996.27
6. Step 6: Final answer
   x = 92,853.44