Finding the Fourth Proportional to 168,067.96, 231,930.81 and 91,587.73

Step by Step Solution

1. Step 1: Write the proportion equation
   168,067.96 : 231,930.81 = 91,587.73 : x
2. Step 2: Convert to fraction form
   168,067.96/231,930.81 = 91,587.73/x
3. Step 3: Cross multiply
   168,067.96x = 231,930.81 × 91,587.73
4. Step 4: Simplify right side
   168,067.96x = 21,242,016,404.96
5. Step 5: Solve for x
   x = 21,242,016,404.96/168,067.96
6. Step 6: Final answer
   x = 126,389.45