Finding the Fourth Proportional to 10,880, 16,317.72 and 5,327.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,880 : 16,317.72 = 5,327.75 : x
2. Step 2: Convert to fraction form
   10,880/16,317.72 = 5,327.75/x
3. Step 3: Cross multiply
   10,880x = 16,317.72 × 5,327.75
4. Step 4: Simplify right side
   10,880x = 86,936,732.73
5. Step 5: Solve for x
   x = 86,936,732.73/10,880
6. Step 6: Final answer
   x = 7,990.51