Finding the Fourth Proportional to 7,155.78, 10,724.43 and 3,204.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,155.78 : 10,724.43 = 3,204.15 : x
2. Step 2: Convert to fraction form
   7,155.78/10,724.43 = 3,204.15/x
3. Step 3: Cross multiply
   7,155.78x = 10,724.43 × 3,204.15
4. Step 4: Simplify right side
   7,155.78x = 34,362,682.38
5. Step 5: Solve for x
   x = 34,362,682.38/7,155.78
6. Step 6: Final answer
   x = 4,802.09