Finding the Fourth Proportional to 6,904.56, 9,528.63 and 3,920.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,904.56 : 9,528.63 = 3,920.34 : x
2. Step 2: Convert to fraction form
   6,904.56/9,528.63 = 3,920.34/x
3. Step 3: Cross multiply
   6,904.56x = 9,528.63 × 3,920.34
4. Step 4: Simplify right side
   6,904.56x = 37,355,469.33
5. Step 5: Solve for x
   x = 37,355,469.33/6,904.56
6. Step 6: Final answer
   x = 5,410.26