Finding the Fourth Proportional to 12,270.30, 18,405.18 and 3,036.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,270.30 : 18,405.18 = 3,036.30 : x
2. Step 2: Convert to fraction form
   12,270.30/18,405.18 = 3,036.30/x
3. Step 3: Cross multiply
   12,270.30x = 18,405.18 × 3,036.30
4. Step 4: Simplify right side
   12,270.30x = 55,883,648.03
5. Step 5: Solve for x
   x = 55,883,648.03/12,270.30
6. Step 6: Final answer
   x = 4,554.38