Finding the Fourth Proportional to 21,489.57, 32,234.31 and 10,397.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,489.57 : 32,234.31 = 10,397.34 : x
2. Step 2: Convert to fraction form
   21,489.57/32,234.31 = 10,397.34/x
3. Step 3: Cross multiply
   21,489.57x = 32,234.31 × 10,397.34
4. Step 4: Simplify right side
   21,489.57x = 335,151,080.74
5. Step 5: Solve for x
   x = 335,151,080.74/21,489.57
6. Step 6: Final answer
   x = 15,595.99