Finding the Fourth Proportional to 10,911.20, 16,365.24 and 3,514.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,911.20 : 16,365.24 = 3,514.77 : x
2. Step 2: Convert to fraction form
   10,911.20/16,365.24 = 3,514.77/x
3. Step 3: Cross multiply
   10,911.20x = 16,365.24 × 3,514.77
4. Step 4: Simplify right side
   10,911.20x = 57,520,054.59
5. Step 5: Solve for x
   x = 57,520,054.59/10,911.20
6. Step 6: Final answer
   x = 5,271.65