Finding the Fourth Proportional to 20,404.50, 30,612.15 and 6,553.86

Step by Step Solution

1. Step 1: Write the proportion equation
   20,404.50 : 30,612.15 = 6,553.86 : x
2. Step 2: Convert to fraction form
   20,404.50/30,612.15 = 6,553.86/x
3. Step 3: Cross multiply
   20,404.50x = 30,612.15 × 6,553.86
4. Step 4: Simplify right side
   20,404.50x = 200,627,745.40
5. Step 5: Solve for x
   x = 200,627,745.40/20,404.50
6. Step 6: Final answer
   x = 9,832.52