Finding the Fourth Proportional to 10,963.17, 16,443.34 and 4,389.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,963.17 : 16,443.34 = 4,389.41 : x
2. Step 2: Convert to fraction form
   10,963.17/16,443.34 = 4,389.41/x
3. Step 3: Cross multiply
   10,963.17x = 16,443.34 × 4,389.41
4. Step 4: Simplify right side
   10,963.17x = 72,176,591.16
5. Step 5: Solve for x
   x = 72,176,591.16/10,963.17
6. Step 6: Final answer
   x = 6,583.55