Finding the Fourth Proportional to 65,067.42, 89,785.10 and 35,991.86

Step by Step Solution

1. Step 1: Write the proportion equation
   65,067.42 : 89,785.10 = 35,991.86 : x
2. Step 2: Convert to fraction form
   65,067.42/89,785.10 = 35,991.86/x
3. Step 3: Cross multiply
   65,067.42x = 89,785.10 × 35,991.86
4. Step 4: Simplify right side
   65,067.42x = 3,231,532,120.40
5. Step 5: Solve for x
   x = 3,231,532,120.40/65,067.42
6. Step 6: Final answer
   x = 49,664.37