Finding the Fourth Proportional to 10,105.25, 15,115.67 and 7,103.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.25 : 15,115.67 = 7,103.09 : x
2. Step 2: Convert to fraction form
   10,105.25/15,115.67 = 7,103.09/x
3. Step 3: Cross multiply
   10,105.25x = 15,115.67 × 7,103.09
4. Step 4: Simplify right side
   10,105.25x = 107,367,993.33
5. Step 5: Solve for x
   x = 107,367,993.33/10,105.25
6. Step 6: Final answer
   x = 10,624.98