Finding the Fourth Proportional to 12,669.20, 17,481.98 and 7,003.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,669.20 : 17,481.98 = 7,003.18 : x
2. Step 2: Convert to fraction form
   12,669.20/17,481.98 = 7,003.18/x
3. Step 3: Cross multiply
   12,669.20x = 17,481.98 × 7,003.18
4. Step 4: Simplify right side
   12,669.20x = 122,429,417.68
5. Step 5: Solve for x
   x = 122,429,417.68/12,669.20
6. Step 6: Final answer
   x = 9,663.55