Finding the Fourth Proportional to 158,222.64, 218,341.89 and 86,601.18

Step by Step Solution

1. Step 1: Write the proportion equation
   158,222.64 : 218,341.89 = 86,601.18 : x
2. Step 2: Convert to fraction form
   158,222.64/218,341.89 = 86,601.18/x
3. Step 3: Cross multiply
   158,222.64x = 218,341.89 × 86,601.18
4. Step 4: Simplify right side
   158,222.64x = 18,908,665,317.43
5. Step 5: Solve for x
   x = 18,908,665,317.43/158,222.64
6. Step 6: Final answer
   x = 119,506.70