Finding the Fourth Proportional to 51,806.05, 71,489.59 and 30,577.57

Step by Step Solution

1. Step 1: Write the proportion equation
   51,806.05 : 71,489.59 = 30,577.57 : x
2. Step 2: Convert to fraction form
   51,806.05/71,489.59 = 30,577.57/x
3. Step 3: Cross multiply
   51,806.05x = 71,489.59 × 30,577.57
4. Step 4: Simplify right side
   51,806.05x = 2,185,977,942.50
5. Step 5: Solve for x
   x = 2,185,977,942.50/51,806.05
6. Step 6: Final answer
   x = 42,195.42