Finding the Fourth Proportional to 9,107.94, 12,561.15 and 5,522.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,107.94 : 12,561.15 = 5,522.04 : x
2. Step 2: Convert to fraction form
   9,107.94/12,561.15 = 5,522.04/x
3. Step 3: Cross multiply
   9,107.94x = 12,561.15 × 5,522.04
4. Step 4: Simplify right side
   9,107.94x = 69,363,172.75
5. Step 5: Solve for x
   x = 69,363,172.75/9,107.94
6. Step 6: Final answer
   x = 7,615.68