Finding the Fourth Proportional to 52,401.96, 72,314.72 and 28,528.80

Step by Step Solution

1. Step 1: Write the proportion equation
   52,401.96 : 72,314.72 = 28,528.80 : x
2. Step 2: Convert to fraction form
   52,401.96/72,314.72 = 28,528.80/x
3. Step 3: Cross multiply
   52,401.96x = 72,314.72 × 28,528.80
4. Step 4: Simplify right side
   52,401.96x = 2,063,052,183.94
5. Step 5: Solve for x
   x = 2,063,052,183.94/52,401.96
6. Step 6: Final answer
   x = 39,369.75