Finding the Fourth Proportional to 30,791.42, 42,468 and 22,294.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,791.42 : 42,468 = 22,294.82 : x
2. Step 2: Convert to fraction form
   30,791.42/42,468 = 22,294.82/x
3. Step 3: Cross multiply
   30,791.42x = 42,468 × 22,294.82
4. Step 4: Simplify right side
   30,791.42x = 946,816,415.76
5. Step 5: Solve for x
   x = 946,816,415.76/30,791.42
6. Step 6: Final answer
   x = 30,749.36