Finding the Fourth Proportional to 10,989.40, 16,483.57 and 3,592.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,989.40 : 16,483.57 = 3,592.88 : x
2. Step 2: Convert to fraction form
   10,989.40/16,483.57 = 3,592.88/x
3. Step 3: Cross multiply
   10,989.40x = 16,483.57 × 3,592.88
4. Step 4: Simplify right side
   10,989.40x = 59,223,488.98
5. Step 5: Solve for x
   x = 59,223,488.98/10,989.40
6. Step 6: Final answer
   x = 5,389.15