Finding the Fourth Proportional to 23,018.74, 31,628.19 and 18,294.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,018.74 : 31,628.19 = 18,294.82 : x
2. Step 2: Convert to fraction form
   23,018.74/31,628.19 = 18,294.82/x
3. Step 3: Cross multiply
   23,018.74x = 31,628.19 × 18,294.82
4. Step 4: Simplify right side
   23,018.74x = 578,632,042.98
5. Step 5: Solve for x
   x = 578,632,042.98/23,018.74
6. Step 6: Final answer
   x = 25,137.43