Finding the Fourth Proportional to 9,108.28, 12,569.61 and 5,523.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,108.28 : 12,569.61 = 5,523.22 : x
2. Step 2: Convert to fraction form
   9,108.28/12,569.61 = 5,523.22/x
3. Step 3: Cross multiply
   9,108.28x = 12,569.61 × 5,523.22
4. Step 4: Simplify right side
   9,108.28x = 69,424,721.34
5. Step 5: Solve for x
   x = 69,424,721.34/9,108.28
6. Step 6: Final answer
   x = 7,622.15