Finding the Fourth Proportional to 7,210.76, 9,951.31 and 4,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,210.76 : 9,951.31 = 4,225.50 : x
2. Step 2: Convert to fraction form
   7,210.76/9,951.31 = 4,225.50/x
3. Step 3: Cross multiply
   7,210.76x = 9,951.31 × 4,225.50
4. Step 4: Simplify right side
   7,210.76x = 42,049,260.41
5. Step 5: Solve for x
   x = 42,049,260.41/7,210.76
6. Step 6: Final answer
   x = 5,831.46