Finding the Fourth Proportional to 10,756.38, 16,138.17 and 5,489.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,756.38 : 16,138.17 = 5,489.10 : x
2. Step 2: Convert to fraction form
   10,756.38/16,138.17 = 5,489.10/x
3. Step 3: Cross multiply
   10,756.38x = 16,138.17 × 5,489.10
4. Step 4: Simplify right side
   10,756.38x = 88,584,028.95
5. Step 5: Solve for x
   x = 88,584,028.95/10,756.38
6. Step 6: Final answer
   x = 8,235.49