Finding the Fourth Proportional to 118,086.27, 162,958.59 and 64,371.12

Step by Step Solution

1. Step 1: Write the proportion equation
   118,086.27 : 162,958.59 = 64,371.12 : x
2. Step 2: Convert to fraction form
   118,086.27/162,958.59 = 64,371.12/x
3. Step 3: Cross multiply
   118,086.27x = 162,958.59 × 64,371.12
4. Step 4: Simplify right side
   118,086.27x = 10,489,826,951.92
5. Step 5: Solve for x
   x = 10,489,826,951.92/118,086.27
6. Step 6: Final answer
   x = 88,831.89