Finding the Fourth Proportional to 4,290.10, 6,019.10 and 4,290.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,290.10 : 6,019.10 = 4,290.10 : x
2. Step 2: Convert to fraction form
   4,290.10/6,019.10 = 4,290.10/x
3. Step 3: Cross multiply
   4,290.10x = 6,019.10 × 4,290.10
4. Step 4: Simplify right side
   4,290.10x = 25,822,540.91
5. Step 5: Solve for x
   x = 25,822,540.91/4,290.10
6. Step 6: Final answer
   x = 6,019.10