Finding the Fourth Proportional to 12,736.56, 17,576.52 and 7,147.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,736.56 : 17,576.52 = 7,147.56 : x
2. Step 2: Convert to fraction form
   12,736.56/17,576.52 = 7,147.56/x
3. Step 3: Cross multiply
   12,736.56x = 17,576.52 × 7,147.56
4. Step 4: Simplify right side
   12,736.56x = 125,629,231.29
5. Step 5: Solve for x
   x = 125,629,231.29/12,736.56
6. Step 6: Final answer
   x = 9,863.67