Finding the Fourth Proportional to 10,990.66, 16,486.18 and 3,595.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990.66 : 16,486.18 = 3,595.10 : x
2. Step 2: Convert to fraction form
   10,990.66/16,486.18 = 3,595.10/x
3. Step 3: Cross multiply
   10,990.66x = 16,486.18 × 3,595.10
4. Step 4: Simplify right side
   10,990.66x = 59,269,465.72
5. Step 5: Solve for x
   x = 59,269,465.72/10,990.66
6. Step 6: Final answer
   x = 5,392.71