Finding the Fourth Proportional to 10,920.03, 16,375.49 and 5,375.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,920.03 : 16,375.49 = 5,375.99 : x
2. Step 2: Convert to fraction form
   10,920.03/16,375.49 = 5,375.99/x
3. Step 3: Cross multiply
   10,920.03x = 16,375.49 × 5,375.99
4. Step 4: Simplify right side
   10,920.03x = 88,034,361.73
5. Step 5: Solve for x
   x = 88,034,361.73/10,920.03
6. Step 6: Final answer
   x = 8,061.73