Finding the Fourth Proportional to 7,018.51, 9,685.41 and 3,874.63

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.51 : 9,685.41 = 3,874.63 : x
2. Step 2: Convert to fraction form
   7,018.51/9,685.41 = 3,874.63/x
3. Step 3: Cross multiply
   7,018.51x = 9,685.41 × 3,874.63
4. Step 4: Simplify right side
   7,018.51x = 37,527,380.15
5. Step 5: Solve for x
   x = 37,527,380.15/7,018.51
6. Step 6: Final answer
   x = 5,346.92