Finding the Fourth Proportional to 9,105.22, 12,567.72 and 5,329.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,105.22 : 12,567.72 = 5,329.18 : x
2. Step 2: Convert to fraction form
   9,105.22/12,567.72 = 5,329.18/x
3. Step 3: Cross multiply
   9,105.22x = 12,567.72 × 5,329.18
4. Step 4: Simplify right side
   9,105.22x = 66,975,642.07
5. Step 5: Solve for x
   x = 66,975,642.07/9,105.22
6. Step 6: Final answer
   x = 7,355.74