Finding the Fourth Proportional to 10,990.71, 16,474.43 and 3,593.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990.71 : 16,474.43 = 3,593.18 : x
2. Step 2: Convert to fraction form
   10,990.71/16,474.43 = 3,593.18/x
3. Step 3: Cross multiply
   10,990.71x = 16,474.43 × 3,593.18
4. Step 4: Simplify right side
   10,990.71x = 59,195,492.05
5. Step 5: Solve for x
   x = 59,195,492.05/10,990.71
6. Step 6: Final answer
   x = 5,385.96