Finding the Fourth Proportional to 9,208.40, 12,707.76 and 5,016.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,208.40 : 12,707.76 = 5,016.72 : x
2. Step 2: Convert to fraction form
   9,208.40/12,707.76 = 5,016.72/x
3. Step 3: Cross multiply
   9,208.40x = 12,707.76 × 5,016.72
4. Step 4: Simplify right side
   9,208.40x = 63,751,273.75
5. Step 5: Solve for x
   x = 63,751,273.75/9,208.40
6. Step 6: Final answer
   x = 6,923.17