Finding the Fourth Proportional to 21,519.46, 32,287.38 and 10,425.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,519.46 : 32,287.38 = 10,425.34 : x
2. Step 2: Convert to fraction form
   21,519.46/32,287.38 = 10,425.34/x
3. Step 3: Cross multiply
   21,519.46x = 32,287.38 × 10,425.34
4. Step 4: Simplify right side
   21,519.46x = 336,606,914.21
5. Step 5: Solve for x
   x = 336,606,914.21/21,519.46
6. Step 6: Final answer
   x = 15,641.98