Finding the Fourth Proportional to 7,208.56, 9,948.78 and 4,225.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,208.56 : 9,948.78 = 4,225.12 : x
2. Step 2: Convert to fraction form
   7,208.56/9,948.78 = 4,225.12/x
3. Step 3: Cross multiply
   7,208.56x = 9,948.78 × 4,225.12
4. Step 4: Simplify right side
   7,208.56x = 42,034,789.35
5. Step 5: Solve for x
   x = 42,034,789.35/7,208.56
6. Step 6: Final answer
   x = 5,831.23