Finding the Fourth Proportional to 10,985.28, 16,480.52 and 3,589.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,985.28 : 16,480.52 = 3,589.73 : x
2. Step 2: Convert to fraction form
   10,985.28/16,480.52 = 3,589.73/x
3. Step 3: Cross multiply
   10,985.28x = 16,480.52 × 3,589.73
4. Step 4: Simplify right side
   10,985.28x = 59,160,516.71
5. Step 5: Solve for x
   x = 59,160,516.71/10,985.28
6. Step 6: Final answer
   x = 5,385.44