Finding the Fourth Proportional to 65,854.42, 90,879.37 and 37,174.34

Step by Step Solution

1. Step 1: Write the proportion equation
   65,854.42 : 90,879.37 = 37,174.34 : x
2. Step 2: Convert to fraction form
   65,854.42/90,879.37 = 37,174.34/x
3. Step 3: Cross multiply
   65,854.42x = 90,879.37 × 37,174.34
4. Step 4: Simplify right side
   65,854.42x = 3,378,380,733.63
5. Step 5: Solve for x
   x = 3,378,380,733.63/65,854.42
6. Step 6: Final answer
   x = 51,300.75