Finding the Fourth Proportional to 52,704.69, 72,734.28 and 28,831.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,704.69 : 72,734.28 = 28,831.38 : x
2. Step 2: Convert to fraction form
   52,704.69/72,734.28 = 28,831.38/x
3. Step 3: Cross multiply
   52,704.69x = 72,734.28 × 28,831.38
4. Step 4: Simplify right side
   52,704.69x = 2,097,029,665.71
5. Step 5: Solve for x
   x = 2,097,029,665.71/52,704.69
6. Step 6: Final answer
   x = 39,788.29