Finding the Fourth Proportional to 23,118.21, 31,920.89 and 19,162.17

Step by Step Solution

1. Step 1: Write the proportion equation
   23,118.21 : 31,920.89 = 19,162.17 : x
2. Step 2: Convert to fraction form
   23,118.21/31,920.89 = 19,162.17/x
3. Step 3: Cross multiply
   23,118.21x = 31,920.89 × 19,162.17
4. Step 4: Simplify right side
   23,118.21x = 611,673,424.92
5. Step 5: Solve for x
   x = 611,673,424.92/23,118.21
6. Step 6: Final answer
   x = 26,458.51