Finding the Fourth Proportional to 10,911.50, 16,365.17 and 3,012.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,911.50 : 16,365.17 = 3,012.05 : x
2. Step 2: Convert to fraction form
   10,911.50/16,365.17 = 3,012.05/x
3. Step 3: Cross multiply
   10,911.50x = 16,365.17 × 3,012.05
4. Step 4: Simplify right side
   10,911.50x = 49,292,613.41
5. Step 5: Solve for x
   x = 49,292,613.41/10,911.50
6. Step 6: Final answer
   x = 4,517.49