Finding the Fourth Proportional to 10,889.24, 16,329.19 and 3,491.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,889.24 : 16,329.19 = 3,491.72 : x
2. Step 2: Convert to fraction form
   10,889.24/16,329.19 = 3,491.72/x
3. Step 3: Cross multiply
   10,889.24x = 16,329.19 × 3,491.72
4. Step 4: Simplify right side
   10,889.24x = 57,016,959.31
5. Step 5: Solve for x
   x = 57,016,959.31/10,889.24
6. Step 6: Final answer
   x = 5,236.08