Finding the Fourth Proportional to 51,491.82, 71,050.50 and 28,831.76

Step by Step Solution

1. Step 1: Write the proportion equation
   51,491.82 : 71,050.50 = 28,831.76 : x
2. Step 2: Convert to fraction form
   51,491.82/71,050.50 = 28,831.76/x
3. Step 3: Cross multiply
   51,491.82x = 71,050.50 × 28,831.76
4. Step 4: Simplify right side
   51,491.82x = 2,048,510,963.88
5. Step 5: Solve for x
   x = 2,048,510,963.88/51,491.82
6. Step 6: Final answer
   x = 39,783.23