Finding the Fourth Proportional to 30,892.44, 42,632.76 and 18,789.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,892.44 : 42,632.76 = 18,789.42 : x
2. Step 2: Convert to fraction form
   30,892.44/42,632.76 = 18,789.42/x
3. Step 3: Cross multiply
   30,892.44x = 42,632.76 × 18,789.42
4. Step 4: Simplify right side
   30,892.44x = 801,044,833.40
5. Step 5: Solve for x
   x = 801,044,833.40/30,892.44
6. Step 6: Final answer
   x = 25,930.13