Finding the Fourth Proportional to 51,468.89, 71,021.30 and 28,804.73

Step by Step Solution

1. Step 1: Write the proportion equation
   51,468.89 : 71,021.30 = 28,804.73 : x
2. Step 2: Convert to fraction form
   51,468.89/71,021.30 = 28,804.73/x
3. Step 3: Cross multiply
   51,468.89x = 71,021.30 × 28,804.73
4. Step 4: Simplify right side
   51,468.89x = 2,045,748,871.62
5. Step 5: Solve for x
   x = 2,045,748,871.62/51,468.89
6. Step 6: Final answer
   x = 39,747.29