Finding the Fourth Proportional to 13,061.40, 18,025.84 and 7,397.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.40 : 18,025.84 = 7,397.14 : x
2. Step 2: Convert to fraction form
   13,061.40/18,025.84 = 7,397.14/x
3. Step 3: Cross multiply
   13,061.40x = 18,025.84 × 7,397.14
4. Step 4: Simplify right side
   13,061.40x = 133,339,571.97
5. Step 5: Solve for x
   x = 133,339,571.97/13,061.40
6. Step 6: Final answer
   x = 10,208.68