Finding the Fourth Proportional to 158,227.29, 218,353.89 and 86,611.83

Step by Step Solution

1. Step 1: Write the proportion equation
   158,227.29 : 218,353.89 = 86,611.83 : x
2. Step 2: Convert to fraction form
   158,227.29/218,353.89 = 86,611.83/x
3. Step 3: Cross multiply
   158,227.29x = 218,353.89 × 86,611.83
4. Step 4: Simplify right side
   158,227.29x = 18,912,030,000.52
5. Step 5: Solve for x
   x = 18,912,030,000.52/158,227.29
6. Step 6: Final answer
   x = 119,524.45