Finding the Fourth Proportional to 18,799.31, 25,942.63 and 10,622.15

Step by Step Solution

1. Step 1: Write the proportion equation
   18,799.31 : 25,942.63 = 10,622.15 : x
2. Step 2: Convert to fraction form
   18,799.31/25,942.63 = 10,622.15/x
3. Step 3: Cross multiply
   18,799.31x = 25,942.63 × 10,622.15
4. Step 4: Simplify right side
   18,799.31x = 275,566,507.25
5. Step 5: Solve for x
   x = 275,566,507.25/18,799.31
6. Step 6: Final answer
   x = 14,658.33