Finding the Fourth Proportional to 71,544.78, 107,356.05 and 30,020.94

Step by Step Solution

1. Step 1: Write the proportion equation
   71,544.78 : 107,356.05 = 30,020.94 : x
2. Step 2: Convert to fraction form
   71,544.78/107,356.05 = 30,020.94/x
3. Step 3: Cross multiply
   71,544.78x = 107,356.05 × 30,020.94
4. Step 4: Simplify right side
   71,544.78x = 3,222,929,535.69
5. Step 5: Solve for x
   x = 3,222,929,535.69/71,544.78
6. Step 6: Final answer
   x = 45,047.72