Finding the Fourth Proportional to 12,419.03, 17,144.60 and 9,580.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,419.03 : 17,144.60 = 9,580.02 : x
2. Step 2: Convert to fraction form
   12,419.03/17,144.60 = 9,580.02/x
3. Step 3: Cross multiply
   12,419.03x = 17,144.60 × 9,580.02
4. Step 4: Simplify right side
   12,419.03x = 164,245,610.89
5. Step 5: Solve for x
   x = 164,245,610.89/12,419.03
6. Step 6: Final answer
   x = 13,225.32