Finding the Fourth Proportional to 158,172.81, 218,196.73 and 107,168.08

Step by Step Solution

1. Step 1: Write the proportion equation
   158,172.81 : 218,196.73 = 107,168.08 : x
2. Step 2: Convert to fraction form
   158,172.81/218,196.73 = 107,168.08/x
3. Step 3: Cross multiply
   158,172.81x = 218,196.73 × 107,168.08
4. Step 4: Simplify right side
   158,172.81x = 23,383,724,616.38
5. Step 5: Solve for x
   x = 23,383,724,616.38/158,172.81
6. Step 6: Final answer
   x = 147,836.56