Finding the Fourth Proportional to 21,327.60, 32,010.69 and 10,804.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,327.60 : 32,010.69 = 10,804.89 : x
2. Step 2: Convert to fraction form
   21,327.60/32,010.69 = 10,804.89/x
3. Step 3: Cross multiply
   21,327.60x = 32,010.69 × 10,804.89
4. Step 4: Simplify right side
   21,327.60x = 345,872,144.83
5. Step 5: Solve for x
   x = 345,872,144.83/21,327.60
6. Step 6: Final answer
   x = 16,217.11