Finding the Fourth Proportional to 115,198.08, 158,976.72 and 67,446.96

Step by Step Solution

1. Step 1: Write the proportion equation
   115,198.08 : 158,976.72 = 67,446.96 : x
2. Step 2: Convert to fraction form
   115,198.08/158,976.72 = 67,446.96/x
3. Step 3: Cross multiply
   115,198.08x = 158,976.72 × 67,446.96
4. Step 4: Simplify right side
   115,198.08x = 10,722,496,474.77
5. Step 5: Solve for x
   x = 10,722,496,474.77/115,198.08
6. Step 6: Final answer
   x = 93,078.78