Finding the Fourth Proportional to 9,357.55, 12,913.22 and 5,108.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,357.55 : 12,913.22 = 5,108.69 : x
2. Step 2: Convert to fraction form
   9,357.55/12,913.22 = 5,108.69/x
3. Step 3: Cross multiply
   9,357.55x = 12,913.22 × 5,108.69
4. Step 4: Simplify right side
   9,357.55x = 65,969,682.94
5. Step 5: Solve for x
   x = 65,969,682.94/9,357.55
6. Step 6: Final answer
   x = 7,049.89