Finding the Fourth Proportional to 263,166.72, 394,738.56 and 76,174.08

Step by Step Solution

1. Step 1: Write the proportion equation
   263,166.72 : 394,738.56 = 76,174.08 : x
2. Step 2: Convert to fraction form
   263,166.72/394,738.56 = 76,174.08/x
3. Step 3: Cross multiply
   263,166.72x = 394,738.56 × 76,174.08
4. Step 4: Simplify right side
   263,166.72x = 30,068,846,648.52
5. Step 5: Solve for x
   x = 30,068,846,648.52/263,166.72
6. Step 6: Final answer
   x = 114,257.79