Finding the Fourth Proportional to 11,959.47, 16,496.81 and 7,479.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,959.47 : 16,496.81 = 7,479.54 : x
2. Step 2: Convert to fraction form
   11,959.47/16,496.81 = 7,479.54/x
3. Step 3: Cross multiply
   11,959.47x = 16,496.81 × 7,479.54
4. Step 4: Simplify right side
   11,959.47x = 123,388,582.99
5. Step 5: Solve for x
   x = 123,388,582.99/11,959.47
6. Step 6: Final answer
   x = 10,317.23