Finding the Fourth Proportional to 30,856.78, 42,582.27 and 17,427.37

Step by Step Solution

1. Step 1: Write the proportion equation
   30,856.78 : 42,582.27 = 17,427.37 : x
2. Step 2: Convert to fraction form
   30,856.78/42,582.27 = 17,427.37/x
3. Step 3: Cross multiply
   30,856.78x = 42,582.27 × 17,427.37
4. Step 4: Simplify right side
   30,856.78x = 742,096,974.73
5. Step 5: Solve for x
   x = 742,096,974.73/30,856.78
6. Step 6: Final answer
   x = 24,049.72