Finding the Fourth Proportional to 21,939.48, 32,922.72 and 10,253.88

Step by Step Solution

1. Step 1: Write the proportion equation
   21,939.48 : 32,922.72 = 10,253.88 : x
2. Step 2: Convert to fraction form
   21,939.48/32,922.72 = 10,253.88/x
3. Step 3: Cross multiply
   21,939.48x = 32,922.72 × 10,253.88
4. Step 4: Simplify right side
   21,939.48x = 337,585,620.15
5. Step 5: Solve for x
   x = 337,585,620.15/21,939.48
6. Step 6: Final answer
   x = 15,387.13