Finding the Fourth Proportional to 4,066.71, 6,086.70 and 3,087.42

Step by Step Solution

1. Step 1: Write the proportion equation
   4,066.71 : 6,086.70 = 3,087.42 : x
2. Step 2: Convert to fraction form
   4,066.71/6,086.70 = 3,087.42/x
3. Step 3: Cross multiply
   4,066.71x = 6,086.70 × 3,087.42
4. Step 4: Simplify right side
   4,066.71x = 18,792,199.31
5. Step 5: Solve for x
   x = 18,792,199.31/4,066.71
6. Step 6: Final answer
   x = 4,620.98