Finding the Fourth Proportional to 21,427.82, 32,162.51 and 10,342.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,427.82 : 32,162.51 = 10,342.31 : x
2. Step 2: Convert to fraction form
   21,427.82/32,162.51 = 10,342.31/x
3. Step 3: Cross multiply
   21,427.82x = 32,162.51 × 10,342.31
4. Step 4: Simplify right side
   21,427.82x = 332,634,648.80
5. Step 5: Solve for x
   x = 332,634,648.80/21,427.82
6. Step 6: Final answer
   x = 15,523.49