Finding the Fourth Proportional to 10,990.74, 16,488.12 and 3,595.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990.74 : 16,488.12 = 3,595.60 : x
2. Step 2: Convert to fraction form
   10,990.74/16,488.12 = 3,595.60/x
3. Step 3: Cross multiply
   10,990.74x = 16,488.12 × 3,595.60
4. Step 4: Simplify right side
   10,990.74x = 59,284,684.27
5. Step 5: Solve for x
   x = 59,284,684.27/10,990.74
6. Step 6: Final answer
   x = 5,394.06