Finding the Fourth Proportional to 20,404.10, 30,608.94 and 7,253.30

Step by Step Solution

1. Step 1: Write the proportion equation
   20,404.10 : 30,608.94 = 7,253.30 : x
2. Step 2: Convert to fraction form
   20,404.10/30,608.94 = 7,253.30/x
3. Step 3: Cross multiply
   20,404.10x = 30,608.94 × 7,253.30
4. Step 4: Simplify right side
   20,404.10x = 222,015,824.50
5. Step 5: Solve for x
   x = 222,015,824.50/20,404.10
6. Step 6: Final answer
   x = 10,880.94