Finding the Fourth Proportional to 9,357.22, 12,912.55 and 5,108.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,357.22 : 12,912.55 = 5,108.17 : x
2. Step 2: Convert to fraction form
   9,357.22/12,912.55 = 5,108.17/x
3. Step 3: Cross multiply
   9,357.22x = 12,912.55 × 5,108.17
4. Step 4: Simplify right side
   9,357.22x = 65,959,500.53
5. Step 5: Solve for x
   x = 65,959,500.53/9,357.22
6. Step 6: Final answer
   x = 7,049.05