Finding the Fourth Proportional to 21,604.86, 32,379.89 and 9,745.92

Step by Step Solution

1. Step 1: Write the proportion equation
   21,604.86 : 32,379.89 = 9,745.92 : x
2. Step 2: Convert to fraction form
   21,604.86/32,379.89 = 9,745.92/x
3. Step 3: Cross multiply
   21,604.86x = 32,379.89 × 9,745.92
4. Step 4: Simplify right side
   21,604.86x = 315,571,768.82
5. Step 5: Solve for x
   x = 315,571,768.82/21,604.86
6. Step 6: Final answer
   x = 14,606.52