Finding the Fourth Proportional to 52,401.38, 72,311.63 and 28,528.14

Step by Step Solution

1. Step 1: Write the proportion equation
   52,401.38 : 72,311.63 = 28,528.14 : x
2. Step 2: Convert to fraction form
   52,401.38/72,311.63 = 28,528.14/x
3. Step 3: Cross multiply
   52,401.38x = 72,311.63 × 28,528.14
4. Step 4: Simplify right side
   52,401.38x = 2,062,916,304.27
5. Step 5: Solve for x
   x = 2,062,916,304.27/52,401.38
6. Step 6: Final answer
   x = 39,367.59