Finding the Fourth Proportional to 9,300.56, 12,834.60 and 5,108.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.56 : 12,834.60 = 5,108.72 : x
2. Step 2: Convert to fraction form
   9,300.56/12,834.60 = 5,108.72/x
3. Step 3: Cross multiply
   9,300.56x = 12,834.60 × 5,108.72
4. Step 4: Simplify right side
   9,300.56x = 65,568,377.71
5. Step 5: Solve for x
   x = 65,568,377.71/9,300.56
6. Step 6: Final answer
   x = 7,049.94