Finding the Fourth Proportional to 12,668.46, 17,488.71 and 7,955.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,668.46 : 17,488.71 = 7,955.34 : x
2. Step 2: Convert to fraction form
   12,668.46/17,488.71 = 7,955.34/x
3. Step 3: Cross multiply
   12,668.46x = 17,488.71 × 7,955.34
4. Step 4: Simplify right side
   12,668.46x = 139,128,634.21
5. Step 5: Solve for x
   x = 139,128,634.21/12,668.46
6. Step 6: Final answer
   x = 10,982.28