Finding the Fourth Proportional to 10,668.47, 14,729.43 and 9,547.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,668.47 : 14,729.43 = 9,547.48 : x
2. Step 2: Convert to fraction form
   10,668.47/14,729.43 = 9,547.48/x
3. Step 3: Cross multiply
   10,668.47x = 14,729.43 × 9,547.48
4. Step 4: Simplify right side
   10,668.47x = 140,628,939.42
5. Step 5: Solve for x
   x = 140,628,939.42/10,668.47
6. Step 6: Final answer
   x = 13,181.73