Finding the Fourth Proportional to 21,519.81, 32,282.78 and 10,417.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,519.81 : 32,282.78 = 10,417.37 : x
2. Step 2: Convert to fraction form
   21,519.81/32,282.78 = 10,417.37/x
3. Step 3: Cross multiply
   21,519.81x = 32,282.78 × 10,417.37
4. Step 4: Simplify right side
   21,519.81x = 336,301,450.39
5. Step 5: Solve for x
   x = 336,301,450.39/21,519.81
6. Step 6: Final answer
   x = 15,627.53