Finding the Fourth Proportional to 9,442.72, 14,109.63 and 7,208.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,442.72 : 14,109.63 = 7,208.72 : x
2. Step 2: Convert to fraction form
   9,442.72/14,109.63 = 7,208.72/x
3. Step 3: Cross multiply
   9,442.72x = 14,109.63 × 7,208.72
4. Step 4: Simplify right side
   9,442.72x = 101,712,371.97
5. Step 5: Solve for x
   x = 101,712,371.97/9,442.72
6. Step 6: Final answer
   x = 10,771.51