Finding the Fourth Proportional to 21,628.50, 32,448 and 10,532.67

Step by Step Solution

1. Step 1: Write the proportion equation
   21,628.50 : 32,448 = 10,532.67 : x
2. Step 2: Convert to fraction form
   21,628.50/32,448 = 10,532.67/x
3. Step 3: Cross multiply
   21,628.50x = 32,448 × 10,532.67
4. Step 4: Simplify right side
   21,628.50x = 341,764,076.16
5. Step 5: Solve for x
   x = 341,764,076.16/21,628.50
6. Step 6: Final answer
   x = 15,801.56