Finding the Fourth Proportional to 21,671.15, 32,483.33 and 10,553.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,671.15 : 32,483.33 = 10,553.27 : x
2. Step 2: Convert to fraction form
   21,671.15/32,483.33 = 10,553.27/x
3. Step 3: Cross multiply
   21,671.15x = 32,483.33 × 10,553.27
4. Step 4: Simplify right side
   21,671.15x = 342,805,299.22
5. Step 5: Solve for x
   x = 342,805,299.22/21,671.15
6. Step 6: Final answer
   x = 15,818.51