Finding the Fourth Proportional to 21,453.53, 32,120.89 and 16,172.53

Step by Step Solution

1. Step 1: Write the proportion equation
   21,453.53 : 32,120.89 = 16,172.53 : x
2. Step 2: Convert to fraction form
   21,453.53/32,120.89 = 16,172.53/x
3. Step 3: Cross multiply
   21,453.53x = 32,120.89 × 16,172.53
4. Step 4: Simplify right side
   21,453.53x = 519,475,936.42
5. Step 5: Solve for x
   x = 519,475,936.42/21,453.53
6. Step 6: Final answer
   x = 24,214.01