Finding the Fourth Proportional to 52,458.54, 72,393.60 and 28,585.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,458.54 : 72,393.60 = 28,585.18 : x
2. Step 2: Convert to fraction form
   52,458.54/72,393.60 = 28,585.18/x
3. Step 3: Cross multiply
   52,458.54x = 72,393.60 × 28,585.18
4. Step 4: Simplify right side
   52,458.54x = 2,069,384,086.85
5. Step 5: Solve for x
   x = 2,069,384,086.85/52,458.54
6. Step 6: Final answer
   x = 39,447.99