Finding the Fourth Proportional to 6,087.46, 8,399.28 and 4,200.70

Step by Step Solution

1. Step 1: Write the proportion equation
   6,087.46 : 8,399.28 = 4,200.70 : x
2. Step 2: Convert to fraction form
   6,087.46/8,399.28 = 4,200.70/x
3. Step 3: Cross multiply
   6,087.46x = 8,399.28 × 4,200.70
4. Step 4: Simplify right side
   6,087.46x = 35,282,855.50
5. Step 5: Solve for x
   x = 35,282,855.50/6,087.46
6. Step 6: Final answer
   x = 5,795.99