Finding the Fourth Proportional to 7,018.56, 9,685.68 and 3,874.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.56 : 9,685.68 = 3,874.84 : x
2. Step 2: Convert to fraction form
   7,018.56/9,685.68 = 3,874.84/x
3. Step 3: Cross multiply
   7,018.56x = 9,685.68 × 3,874.84
4. Step 4: Simplify right side
   7,018.56x = 37,530,460.29
5. Step 5: Solve for x
   x = 37,530,460.29/7,018.56
6. Step 6: Final answer
   x = 5,347.32