Finding the Fourth Proportional to 52,618.47, 72,613.53 and 28,745.54

Step by Step Solution

1. Step 1: Write the proportion equation
   52,618.47 : 72,613.53 = 28,745.54 : x
2. Step 2: Convert to fraction form
   52,618.47/72,613.53 = 28,745.54/x
3. Step 3: Cross multiply
   52,618.47x = 72,613.53 × 28,745.54
4. Step 4: Simplify right side
   52,618.47x = 2,087,315,238.95
5. Step 5: Solve for x
   x = 2,087,315,238.95/52,618.47
6. Step 6: Final answer
   x = 39,668.87