Finding the Fourth Proportional to 21,472.52, 32,212.22 and 10,380.02

Step by Step Solution

1. Step 1: Write the proportion equation
   21,472.52 : 32,212.22 = 10,380.02 : x
2. Step 2: Convert to fraction form
   21,472.52/32,212.22 = 10,380.02/x
3. Step 3: Cross multiply
   21,472.52x = 32,212.22 × 10,380.02
4. Step 4: Simplify right side
   21,472.52x = 334,363,487.84
5. Step 5: Solve for x
   x = 334,363,487.84/21,472.52
6. Step 6: Final answer
   x = 15,571.69