Finding the Fourth Proportional to 9,357.96, 12,913.78 and 5,108.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,357.96 : 12,913.78 = 5,108.86 : x
2. Step 2: Convert to fraction form
   9,357.96/12,913.78 = 5,108.86/x
3. Step 3: Cross multiply
   9,357.96x = 12,913.78 × 5,108.86
4. Step 4: Simplify right side
   9,357.96x = 65,974,612.85
5. Step 5: Solve for x
   x = 65,974,612.85/9,357.96
6. Step 6: Final answer
   x = 7,050.11