Finding the Fourth Proportional to 23,019.74, 31,629.56 and 18,295.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,019.74 : 31,629.56 = 18,295.82 : x
2. Step 2: Convert to fraction form
   23,019.74/31,629.56 = 18,295.82/x
3. Step 3: Cross multiply
   23,019.74x = 31,629.56 × 18,295.82
4. Step 4: Simplify right side
   23,019.74x = 578,688,736.44
5. Step 5: Solve for x
   x = 578,688,736.44/23,019.74
6. Step 6: Final answer
   x = 25,138.80