Finding the Fourth Proportional to 10,910.32, 16,366.04 and 3,120.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,910.32 : 16,366.04 = 3,120.28 : x
2. Step 2: Convert to fraction form
   10,910.32/16,366.04 = 3,120.28/x
3. Step 3: Cross multiply
   10,910.32x = 16,366.04 × 3,120.28
4. Step 4: Simplify right side
   10,910.32x = 51,066,627.29
5. Step 5: Solve for x
   x = 51,066,627.29/10,910.32
6. Step 6: Final answer
   x = 4,680.58