Finding the Fourth Proportional to 146,589.38, 202,298.31 and 86,159.15

Step by Step Solution

1. Step 1: Write the proportion equation
   146,589.38 : 202,298.31 = 86,159.15 : x
2. Step 2: Convert to fraction form
   146,589.38/202,298.31 = 86,159.15/x
3. Step 3: Cross multiply
   146,589.38x = 202,298.31 × 86,159.15
4. Step 4: Simplify right side
   146,589.38x = 17,429,850,436.04
5. Step 5: Solve for x
   x = 17,429,850,436.04/146,589.38
6. Step 6: Final answer
   x = 118,902.55