Finding the Fourth Proportional to 12,378.29, 18,567.25 and 3,018.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,378.29 : 18,567.25 = 3,018.38 : x
2. Step 2: Convert to fraction form
   12,378.29/18,567.25 = 3,018.38/x
3. Step 3: Cross multiply
   12,378.29x = 18,567.25 × 3,018.38
4. Step 4: Simplify right side
   12,378.29x = 56,042,915.67
5. Step 5: Solve for x
   x = 56,042,915.67/12,378.29
6. Step 6: Final answer
   x = 4,527.52