Finding the Fourth Proportional to 12,646.50, 17,452.53 and 7,057.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,646.50 : 17,452.53 = 7,057.86 : x
2. Step 2: Convert to fraction form
   12,646.50/17,452.53 = 7,057.86/x
3. Step 3: Cross multiply
   12,646.50x = 17,452.53 × 7,057.86
4. Step 4: Simplify right side
   12,646.50x = 123,177,513.39
5. Step 5: Solve for x
   x = 123,177,513.39/12,646.50
6. Step 6: Final answer
   x = 9,740.05