Finding the Fourth Proportional to 11,940.32, 16,470.32 and 7,697

Step by Step Solution

1. Step 1: Write the proportion equation
   11,940.32 : 16,470.32 = 7,697 : x
2. Step 2: Convert to fraction form
   11,940.32/16,470.32 = 7,697/x
3. Step 3: Cross multiply
   11,940.32x = 16,470.32 × 7,697
4. Step 4: Simplify right side
   11,940.32x = 126,772,053.04
5. Step 5: Solve for x
   x = 126,772,053.04/11,940.32
6. Step 6: Final answer
   x = 10,617.14