Finding the Fourth Proportional to 12,648.02, 17,448.34 and 8,173.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,648.02 : 17,448.34 = 8,173.18 : x
2. Step 2: Convert to fraction form
   12,648.02/17,448.34 = 8,173.18/x
3. Step 3: Cross multiply
   12,648.02x = 17,448.34 × 8,173.18
4. Step 4: Simplify right side
   12,648.02x = 142,608,423.52
5. Step 5: Solve for x
   x = 142,608,423.52/12,648.02
6. Step 6: Final answer
   x = 11,275.16