Finding the Fourth Proportional to 330,456.58, 495,019.59 and 152,718.82

Step by Step Solution

1. Step 1: Write the proportion equation
   330,456.58 : 495,019.59 = 152,718.82 : x
2. Step 2: Convert to fraction form
   330,456.58/495,019.59 = 152,718.82/x
3. Step 3: Cross multiply
   330,456.58x = 495,019.59 × 152,718.82
4. Step 4: Simplify right side
   330,456.58x = 75,598,807,661.68
5. Step 5: Solve for x
   x = 75,598,807,661.68/330,456.58
6. Step 6: Final answer
   x = 228,770.77