Finding the Fourth Proportional to 111,978.96, 154,519.75 and 68,951.55

Step by Step Solution

1. Step 1: Write the proportion equation
   111,978.96 : 154,519.75 = 68,951.55 : x
2. Step 2: Convert to fraction form
   111,978.96/154,519.75 = 68,951.55/x
3. Step 3: Cross multiply
   111,978.96x = 154,519.75 × 68,951.55
4. Step 4: Simplify right side
   111,978.96x = 10,654,376,933.75
5. Step 5: Solve for x
   x = 10,654,376,933.75/111,978.96
6. Step 6: Final answer
   x = 95,146.24