Finding the Fourth Proportional to 120,978.04, 166,949.62 and 67,986.04

Step by Step Solution

1. Step 1: Write the proportion equation
   120,978.04 : 166,949.62 = 67,986.04 : x
2. Step 2: Convert to fraction form
   120,978.04/166,949.62 = 67,986.04/x
3. Step 3: Cross multiply
   120,978.04x = 166,949.62 × 67,986.04
4. Step 4: Simplify right side
   120,978.04x = 11,350,243,543.30
5. Step 5: Solve for x
   x = 11,350,243,543.30/120,978.04
6. Step 6: Final answer
   x = 93,820.69