Finding the Fourth Proportional to 52,456.05, 72,389.43 and 28,582.11

Step by Step Solution

1. Step 1: Write the proportion equation
   52,456.05 : 72,389.43 = 28,582.11 : x
2. Step 2: Convert to fraction form
   52,456.05/72,389.43 = 28,582.11/x
3. Step 3: Cross multiply
   52,456.05x = 72,389.43 × 28,582.11
4. Step 4: Simplify right side
   52,456.05x = 2,069,042,651.10
5. Step 5: Solve for x
   x = 2,069,042,651.10/52,456.05
6. Step 6: Final answer
   x = 39,443.36