Finding the Fourth Proportional to 12,645.48, 17,452.08 and 7,056.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,645.48 : 17,452.08 = 7,056.48 : x
2. Step 2: Convert to fraction form
   12,645.48/17,452.08 = 7,056.48/x
3. Step 3: Cross multiply
   12,645.48x = 17,452.08 × 7,056.48
4. Step 4: Simplify right side
   12,645.48x = 123,150,253.48
5. Step 5: Solve for x
   x = 123,150,253.48/12,645.48
6. Step 6: Final answer
   x = 9,738.68