Finding the Fourth Proportional to 30,573.82, 42,174 and 19,225.35

Step by Step Solution

1. Step 1: Write the proportion equation
   30,573.82 : 42,174 = 19,225.35 : x
2. Step 2: Convert to fraction form
   30,573.82/42,174 = 19,225.35/x
3. Step 3: Cross multiply
   30,573.82x = 42,174 × 19,225.35
4. Step 4: Simplify right side
   30,573.82x = 810,809,910.90
5. Step 5: Solve for x
   x = 810,809,910.90/30,573.82
6. Step 6: Final answer
   x = 26,519.74