Finding the Fourth Proportional to 7,018.30, 9,685.26 and 3,874.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.30 : 9,685.26 = 3,874.49 : x
2. Step 2: Convert to fraction form
   7,018.30/9,685.26 = 3,874.49/x
3. Step 3: Cross multiply
   7,018.30x = 9,685.26 × 3,874.49
4. Step 4: Simplify right side
   7,018.30x = 37,525,443.02
5. Step 5: Solve for x
   x = 37,525,443.02/7,018.30
6. Step 6: Final answer
   x = 5,346.80