Finding the Fourth Proportional to 49,791.27, 68,715.35 and 30,418.47

Step by Step Solution

1. Step 1: Write the proportion equation
   49,791.27 : 68,715.35 = 30,418.47 : x
2. Step 2: Convert to fraction form
   49,791.27/68,715.35 = 30,418.47/x
3. Step 3: Cross multiply
   49,791.27x = 68,715.35 × 30,418.47
4. Step 4: Simplify right side
   49,791.27x = 2,090,215,660.42
5. Step 5: Solve for x
   x = 2,090,215,660.42/49,791.27
6. Step 6: Final answer
   x = 41,979.56