Finding the Fourth Proportional to 6,921.03, 10,383.54 and 3,412.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,921.03 : 10,383.54 = 3,412.09 : x
2. Step 2: Convert to fraction form
   6,921.03/10,383.54 = 3,412.09/x
3. Step 3: Cross multiply
   6,921.03x = 10,383.54 × 3,412.09
4. Step 4: Simplify right side
   6,921.03x = 35,429,573.00
5. Step 5: Solve for x
   x = 35,429,573.00/6,921.03
6. Step 6: Final answer
   x = 5,119.12