Finding the Fourth Proportional to 10,981.71, 16,472.03 and 3,585.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.71 : 16,472.03 = 3,585.20 : x
2. Step 2: Convert to fraction form
   10,981.71/16,472.03 = 3,585.20/x
3. Step 3: Cross multiply
   10,981.71x = 16,472.03 × 3,585.20
4. Step 4: Simplify right side
   10,981.71x = 59,055,421.67
5. Step 5: Solve for x
   x = 59,055,421.67/10,981.71
6. Step 6: Final answer
   x = 5,377.62