Finding the Fourth Proportional to 10,973.48, 16,469.39 and 9,940.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,973.48 : 16,469.39 = 9,940.12 : x
2. Step 2: Convert to fraction form
   10,973.48/16,469.39 = 9,940.12/x
3. Step 3: Cross multiply
   10,973.48x = 16,469.39 × 9,940.12
4. Step 4: Simplify right side
   10,973.48x = 163,707,696.60
5. Step 5: Solve for x
   x = 163,707,696.60/10,973.48
6. Step 6: Final answer
   x = 14,918.49