Finding the Fourth Proportional to 51,554.52, 71,145.46 and 30,057

Step by Step Solution

1. Step 1: Write the proportion equation
   51,554.52 : 71,145.46 = 30,057 : x
2. Step 2: Convert to fraction form
   51,554.52/71,145.46 = 30,057/x
3. Step 3: Cross multiply
   51,554.52x = 71,145.46 × 30,057
4. Step 4: Simplify right side
   51,554.52x = 2,138,419,091.22
5. Step 5: Solve for x
   x = 2,138,419,091.22/51,554.52
6. Step 6: Final answer
   x = 41,478.79