Finding the Fourth Proportional to 10,995.11, 16,494.69 and 3,599.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,995.11 : 16,494.69 = 3,599.99 : x
2. Step 2: Convert to fraction form
   10,995.11/16,494.69 = 3,599.99/x
3. Step 3: Cross multiply
   10,995.11x = 16,494.69 × 3,599.99
4. Step 4: Simplify right side
   10,995.11x = 59,380,636.58
5. Step 5: Solve for x
   x = 59,380,636.58/10,995.11
6. Step 6: Final answer
   x = 5,400.64