Finding the Fourth Proportional to 10,783.72, 16,170.18 and 3,388.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,783.72 : 16,170.18 = 3,388.08 : x
2. Step 2: Convert to fraction form
   10,783.72/16,170.18 = 3,388.08/x
3. Step 3: Cross multiply
   10,783.72x = 16,170.18 × 3,388.08
4. Step 4: Simplify right side
   10,783.72x = 54,785,863.45
5. Step 5: Solve for x
   x = 54,785,863.45/10,783.72
6. Step 6: Final answer
   x = 5,080.42