Finding the Fourth Proportional to 158,216.82, 218,338.52 and 86,596.62

Step by Step Solution

1. Step 1: Write the proportion equation
   158,216.82 : 218,338.52 = 86,596.62 : x
2. Step 2: Convert to fraction form
   158,216.82/218,338.52 = 86,596.62/x
3. Step 3: Cross multiply
   158,216.82x = 218,338.52 × 86,596.62
4. Step 4: Simplify right side
   158,216.82x = 18,907,377,414.82
5. Step 5: Solve for x
   x = 18,907,377,414.82/158,216.82
6. Step 6: Final answer
   x = 119,502.95