Finding the Fourth Proportional to 12,995.58, 19,496.25 and 7,149.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,995.58 : 19,496.25 = 7,149.18 : x
2. Step 2: Convert to fraction form
   12,995.58/19,496.25 = 7,149.18/x
3. Step 3: Cross multiply
   12,995.58x = 19,496.25 × 7,149.18
4. Step 4: Simplify right side
   12,995.58x = 139,382,200.58
5. Step 5: Solve for x
   x = 139,382,200.58/12,995.58
6. Step 6: Final answer
   x = 10,725.35