Finding the Fourth Proportional to 12,627.09, 17,421.89 and 7,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,627.09 : 17,421.89 = 7,249.50 : x
2. Step 2: Convert to fraction form
   12,627.09/17,421.89 = 7,249.50/x
3. Step 3: Cross multiply
   12,627.09x = 17,421.89 × 7,249.50
4. Step 4: Simplify right side
   12,627.09x = 126,299,955.31
5. Step 5: Solve for x
   x = 126,299,955.31/12,627.09
6. Step 6: Final answer
   x = 10,002.30