Finding the Fourth Proportional to 20,404.06, 30,577.35 and 16,225.53

Step by Step Solution

1. Step 1: Write the proportion equation
   20,404.06 : 30,577.35 = 16,225.53 : x
2. Step 2: Convert to fraction form
   20,404.06/30,577.35 = 16,225.53/x
3. Step 3: Cross multiply
   20,404.06x = 30,577.35 × 16,225.53
4. Step 4: Simplify right side
   20,404.06x = 496,133,556.86
5. Step 5: Solve for x
   x = 496,133,556.86/20,404.06
6. Step 6: Final answer
   x = 24,315.43