Finding the Fourth Proportional to 52,105.10, 71,905.10 and 28,231.77

Step by Step Solution

1. Step 1: Write the proportion equation
   52,105.10 : 71,905.10 = 28,231.77 : x
2. Step 2: Convert to fraction form
   52,105.10/71,905.10 = 28,231.77/x
3. Step 3: Cross multiply
   52,105.10x = 71,905.10 × 28,231.77
4. Step 4: Simplify right side
   52,105.10x = 2,030,008,245.03
5. Step 5: Solve for x
   x = 2,030,008,245.03/52,105.10
6. Step 6: Final answer
   x = 38,959.88