Finding the Fourth Proportional to 9,007.43, 13,510.33 and 6,386.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,007.43 : 13,510.33 = 6,386.18 : x
2. Step 2: Convert to fraction form
   9,007.43/13,510.33 = 6,386.18/x
3. Step 3: Cross multiply
   9,007.43x = 13,510.33 × 6,386.18
4. Step 4: Simplify right side
   9,007.43x = 86,279,315.72
5. Step 5: Solve for x
   x = 86,279,315.72/9,007.43
6. Step 6: Final answer
   x = 9,578.69