Finding the Fourth Proportional to 52,464.73, 72,399.21 and 28,590.89

Step by Step Solution

1. Step 1: Write the proportion equation
   52,464.73 : 72,399.21 = 28,590.89 : x
2. Step 2: Convert to fraction form
   52,464.73/72,399.21 = 28,590.89/x
3. Step 3: Cross multiply
   52,464.73x = 72,399.21 × 28,590.89
4. Step 4: Simplify right side
   52,464.73x = 2,069,957,344.25
5. Step 5: Solve for x
   x = 2,069,957,344.25/52,464.73
6. Step 6: Final answer
   x = 39,454.27