Finding the Fourth Proportional to 10,880.15, 16,320.77 and 3,388.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,880.15 : 16,320.77 = 3,388.82 : x
2. Step 2: Convert to fraction form
   10,880.15/16,320.77 = 3,388.82/x
3. Step 3: Cross multiply
   10,880.15x = 16,320.77 × 3,388.82
4. Step 4: Simplify right side
   10,880.15x = 55,308,127.15
5. Step 5: Solve for x
   x = 55,308,127.15/10,880.15
6. Step 6: Final answer
   x = 5,083.40