Finding the Fourth Proportional to 4,245.50, 6,355.89 and 3,154.70

Step by Step Solution

1. Step 1: Write the proportion equation
   4,245.50 : 6,355.89 = 3,154.70 : x
2. Step 2: Convert to fraction form
   4,245.50/6,355.89 = 3,154.70/x
3. Step 3: Cross multiply
   4,245.50x = 6,355.89 × 3,154.70
4. Step 4: Simplify right side
   4,245.50x = 20,050,894.40
5. Step 5: Solve for x
   x = 20,050,894.40/4,245.50
6. Step 6: Final answer
   x = 4,722.86