Finding the Fourth Proportional to 394,648.82, 591,874.71 and 154,811.47

Step by Step Solution

1. Step 1: Write the proportion equation
   394,648.82 : 591,874.71 = 154,811.47 : x
2. Step 2: Convert to fraction form
   394,648.82/591,874.71 = 154,811.47/x
3. Step 3: Cross multiply
   394,648.82x = 591,874.71 × 154,811.47
4. Step 4: Simplify right side
   394,648.82x = 91,628,990,951.55
5. Step 5: Solve for x
   x = 91,628,990,951.55/394,648.82
6. Step 6: Final answer
   x = 232,178.55