Finding the Fourth Proportional to 12,810.89, 17,678.48 and 9,452.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,810.89 : 17,678.48 = 9,452.49 : x
2. Step 2: Convert to fraction form
   12,810.89/17,678.48 = 9,452.49/x
3. Step 3: Cross multiply
   12,810.89x = 17,678.48 × 9,452.49
4. Step 4: Simplify right side
   12,810.89x = 167,105,608.15
5. Step 5: Solve for x
   x = 167,105,608.15/12,810.89
6. Step 6: Final answer
   x = 13,044.03