Finding the Fourth Proportional to 13,682.78, 18,882.18 and 7,395.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,682.78 : 18,882.18 = 7,395.14 : x
2. Step 2: Convert to fraction form
   13,682.78/18,882.18 = 7,395.14/x
3. Step 3: Cross multiply
   13,682.78x = 18,882.18 × 7,395.14
4. Step 4: Simplify right side
   13,682.78x = 139,636,364.61
5. Step 5: Solve for x
   x = 139,636,364.61/13,682.78
6. Step 6: Final answer
   x = 10,205.26