Finding the Fourth Proportional to 85,399.91, 117,851.86 and 47,674.16

Step by Step Solution

1. Step 1: Write the proportion equation
   85,399.91 : 117,851.86 = 47,674.16 : x
2. Step 2: Convert to fraction form
   85,399.91/117,851.86 = 47,674.16/x
3. Step 3: Cross multiply
   85,399.91x = 117,851.86 × 47,674.16
4. Step 4: Simplify right side
   85,399.91x = 5,618,488,429.94
5. Step 5: Solve for x
   x = 5,618,488,429.94/85,399.91
6. Step 6: Final answer
   x = 65,790.33