Finding the Fourth Proportional to 7,018.88, 9,686.12 and 3,875.27

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.88 : 9,686.12 = 3,875.27 : x
2. Step 2: Convert to fraction form
   7,018.88/9,686.12 = 3,875.27/x
3. Step 3: Cross multiply
   7,018.88x = 9,686.12 × 3,875.27
4. Step 4: Simplify right side
   7,018.88x = 37,536,262.45
5. Step 5: Solve for x
   x = 37,536,262.45/7,018.88
6. Step 6: Final answer
   x = 5,347.90