Finding the Fourth Proportional to 91,086.92, 136,590.25 and 41,165

Step by Step Solution

1. Step 1: Write the proportion equation
   91,086.92 : 136,590.25 = 41,165 : x
2. Step 2: Convert to fraction form
   91,086.92/136,590.25 = 41,165/x
3. Step 3: Cross multiply
   91,086.92x = 136,590.25 × 41,165
4. Step 4: Simplify right side
   91,086.92x = 5,622,737,641.25
5. Step 5: Solve for x
   x = 5,622,737,641.25/91,086.92
6. Step 6: Final answer
   x = 61,729.36