Finding the Fourth Proportional to 9,358.17, 12,913.72 and 5,108.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,358.17 : 12,913.72 = 5,108.39 : x
2. Step 2: Convert to fraction form
   9,358.17/12,913.72 = 5,108.39/x
3. Step 3: Cross multiply
   9,358.17x = 12,913.72 × 5,108.39
4. Step 4: Simplify right side
   9,358.17x = 65,968,259.93
5. Step 5: Solve for x
   x = 65,968,259.93/9,358.17
6. Step 6: Final answer
   x = 7,049.27