Finding the Fourth Proportional to 21,993.22, 32,974.17 and 10,300.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,993.22 : 32,974.17 = 10,300.06 : x
2. Step 2: Convert to fraction form
   21,993.22/32,974.17 = 10,300.06/x
3. Step 3: Cross multiply
   21,993.22x = 32,974.17 × 10,300.06
4. Step 4: Simplify right side
   21,993.22x = 339,635,929.45
5. Step 5: Solve for x
   x = 339,635,929.45/21,993.22
6. Step 6: Final answer
   x = 15,442.76