Finding the Fourth Proportional to 21,441.30, 29,589 and 12,009.84

Step by Step Solution

1. Step 1: Write the proportion equation
   21,441.30 : 29,589 = 12,009.84 : x
2. Step 2: Convert to fraction form
   21,441.30/29,589 = 12,009.84/x
3. Step 3: Cross multiply
   21,441.30x = 29,589 × 12,009.84
4. Step 4: Simplify right side
   21,441.30x = 355,359,155.76
5. Step 5: Solve for x
   x = 355,359,155.76/21,441.30
6. Step 6: Final answer
   x = 16,573.58