Finding the Fourth Proportional to 23,098.42, 31,676.97 and 22,139.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,098.42 : 31,676.97 = 22,139.78 : x
2. Step 2: Convert to fraction form
   23,098.42/31,676.97 = 22,139.78/x
3. Step 3: Cross multiply
   23,098.42x = 31,676.97 × 22,139.78
4. Step 4: Simplify right side
   23,098.42x = 701,321,249.69
5. Step 5: Solve for x
   x = 701,321,249.69/23,098.42
6. Step 6: Final answer
   x = 30,362.31