Finding the Fourth Proportional to 4,018.10, 5,631.10 and 4,018.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,018.10 : 5,631.10 = 4,018.10 : x
2. Step 2: Convert to fraction form
   4,018.10/5,631.10 = 4,018.10/x
3. Step 3: Cross multiply
   4,018.10x = 5,631.10 × 4,018.10
4. Step 4: Simplify right side
   4,018.10x = 22,626,322.91
5. Step 5: Solve for x
   x = 22,626,322.91/4,018.10
6. Step 6: Final answer
   x = 5,631.10