Finding the Fourth Proportional to 12,648.42, 17,457.12 and 7,343.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,648.42 : 17,457.12 = 7,343.46 : x
2. Step 2: Convert to fraction form
   12,648.42/17,457.12 = 7,343.46/x
3. Step 3: Cross multiply
   12,648.42x = 17,457.12 × 7,343.46
4. Step 4: Simplify right side
   12,648.42x = 128,195,662.44
5. Step 5: Solve for x
   x = 128,195,662.44/12,648.42
6. Step 6: Final answer
   x = 10,135.31