Finding the Fourth Proportional to 12,499.20, 17,249.28 and 7,195.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.20 : 17,249.28 = 7,195.08 : x
2. Step 2: Convert to fraction form
   12,499.20/17,249.28 = 7,195.08/x
3. Step 3: Cross multiply
   12,499.20x = 17,249.28 × 7,195.08
4. Step 4: Simplify right side
   12,499.20x = 124,109,949.54
5. Step 5: Solve for x
   x = 124,109,949.54/12,499.20
6. Step 6: Final answer
   x = 9,929.43