Finding the Fourth Proportional to 9,107.28, 12,568.23 and 5,522.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,107.28 : 12,568.23 = 5,522.22 : x
2. Step 2: Convert to fraction form
   9,107.28/12,568.23 = 5,522.22/x
3. Step 3: Cross multiply
   9,107.28x = 12,568.23 × 5,522.22
4. Step 4: Simplify right side
   9,107.28x = 69,404,531.07
5. Step 5: Solve for x
   x = 69,404,531.07/9,107.28
6. Step 6: Final answer
   x = 7,620.77