Finding the Fourth Proportional to 105,785.62, 158,682.21 and 35,665.54

Step by Step Solution

1. Step 1: Write the proportion equation
   105,785.62 : 158,682.21 = 35,665.54 : x
2. Step 2: Convert to fraction form
   105,785.62/158,682.21 = 35,665.54/x
3. Step 3: Cross multiply
   105,785.62x = 158,682.21 × 35,665.54
4. Step 4: Simplify right side
   105,785.62x = 5,659,486,708.04
5. Step 5: Solve for x
   x = 5,659,486,708.04/105,785.62
6. Step 6: Final answer
   x = 53,499.58