Finding the Fourth Proportional to 30,513.92, 42,098.56 and 18,573.44

Step by Step Solution

1. Step 1: Write the proportion equation
   30,513.92 : 42,098.56 = 18,573.44 : x
2. Step 2: Convert to fraction form
   30,513.92/42,098.56 = 18,573.44/x
3. Step 3: Cross multiply
   30,513.92x = 42,098.56 × 18,573.44
4. Step 4: Simplify right side
   30,513.92x = 781,915,078.25
5. Step 5: Solve for x
   x = 781,915,078.25/30,513.92
6. Step 6: Final answer
   x = 25,624.86