Finding the Fourth Proportional to 8,922.69, 12,315.03 and 5,148.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,922.69 : 12,315.03 = 5,148.29 : x
2. Step 2: Convert to fraction form
   8,922.69/12,315.03 = 5,148.29/x
3. Step 3: Cross multiply
   8,922.69x = 12,315.03 × 5,148.29
4. Step 4: Simplify right side
   8,922.69x = 63,401,284.22
5. Step 5: Solve for x
   x = 63,401,284.22/8,922.69
6. Step 6: Final answer
   x = 7,105.62