Finding the Fourth Proportional to 11,990.18, 17,984.51 and 3,669.41

Step by Step Solution

1. Step 1: Write the proportion equation
   11,990.18 : 17,984.51 = 3,669.41 : x
2. Step 2: Convert to fraction form
   11,990.18/17,984.51 = 3,669.41/x
3. Step 3: Cross multiply
   11,990.18x = 17,984.51 × 3,669.41
4. Step 4: Simplify right side
   11,990.18x = 65,992,500.69
5. Step 5: Solve for x
   x = 65,992,500.69/11,990.18
6. Step 6: Final answer
   x = 5,503.88