Finding the Fourth Proportional to 21,571.63, 32,401.72 and 14,186.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,571.63 : 32,401.72 = 14,186.59 : x
2. Step 2: Convert to fraction form
   21,571.63/32,401.72 = 14,186.59/x
3. Step 3: Cross multiply
   21,571.63x = 32,401.72 × 14,186.59
4. Step 4: Simplify right side
   21,571.63x = 459,669,853.66
5. Step 5: Solve for x
   x = 459,669,853.66/21,571.63
6. Step 6: Final answer
   x = 21,309.00