Finding the Fourth Proportional to 10,688.77, 16,033.40 and 3,668.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,688.77 : 16,033.40 = 3,668.72 : x
2. Step 2: Convert to fraction form
   10,688.77/16,033.40 = 3,668.72/x
3. Step 3: Cross multiply
   10,688.77x = 16,033.40 × 3,668.72
4. Step 4: Simplify right side
   10,688.77x = 58,822,036.90
5. Step 5: Solve for x
   x = 58,822,036.90/10,688.77
6. Step 6: Final answer
   x = 5,503.16