Finding the Fourth Proportional to 111,318.22, 153,634.89 and 68,890.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,318.22 : 153,634.89 = 68,890.42 : x
2. Step 2: Convert to fraction form
   111,318.22/153,634.89 = 68,890.42/x
3. Step 3: Cross multiply
   111,318.22x = 153,634.89 × 68,890.42
4. Step 4: Simplify right side
   111,318.22x = 10,583,972,098.75
5. Step 5: Solve for x
   x = 10,583,972,098.75/111,318.22
6. Step 6: Final answer
   x = 95,078.52