Finding the Fourth Proportional to 20,404.96, 30,601.25 and 7,256.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,404.96 : 30,601.25 = 7,256.63 : x
2. Step 2: Convert to fraction form
   20,404.96/30,601.25 = 7,256.63/x
3. Step 3: Cross multiply
   20,404.96x = 30,601.25 × 7,256.63
4. Step 4: Simplify right side
   20,404.96x = 222,062,043.43
5. Step 5: Solve for x
   x = 222,062,043.43/20,404.96
6. Step 6: Final answer
   x = 10,882.75