Finding the Fourth Proportional to 52,613.62, 72,608.10 and 28,740.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,613.62 : 72,608.10 = 28,740.52 : x
2. Step 2: Convert to fraction form
   52,613.62/72,608.10 = 28,740.52/x
3. Step 3: Cross multiply
   52,613.62x = 72,608.10 × 28,740.52
4. Step 4: Simplify right side
   52,613.62x = 2,086,794,550.21
5. Step 5: Solve for x
   x = 2,086,794,550.21/52,613.62
6. Step 6: Final answer
   x = 39,662.63