Finding the Fourth Proportional to 158,174.36, 218,280.61 and 86,554.38

Step by Step Solution

1. Step 1: Write the proportion equation
   158,174.36 : 218,280.61 = 86,554.38 : x
2. Step 2: Convert to fraction form
   158,174.36/218,280.61 = 86,554.38/x
3. Step 3: Cross multiply
   158,174.36x = 218,280.61 × 86,554.38
4. Step 4: Simplify right side
   158,174.36x = 18,893,143,304.45
5. Step 5: Solve for x
   x = 18,893,143,304.45/158,174.36
6. Step 6: Final answer
   x = 119,445.05