Finding the Fourth Proportional to 11,003.57, 16,506.99 and 3,984.11

Step by Step Solution

1. Step 1: Write the proportion equation
   11,003.57 : 16,506.99 = 3,984.11 : x
2. Step 2: Convert to fraction form
   11,003.57/16,506.99 = 3,984.11/x
3. Step 3: Cross multiply
   11,003.57x = 16,506.99 × 3,984.11
4. Step 4: Simplify right side
   11,003.57x = 65,765,663.93
5. Step 5: Solve for x
   x = 65,765,663.93/11,003.57
6. Step 6: Final answer
   x = 5,976.76