Finding the Fourth Proportional to 11,929.72, 16,462.98 and 7,150.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,929.72 : 16,462.98 = 7,150.54 : x
2. Step 2: Convert to fraction form
   11,929.72/16,462.98 = 7,150.54/x
3. Step 3: Cross multiply
   11,929.72x = 16,462.98 × 7,150.54
4. Step 4: Simplify right side
   11,929.72x = 117,719,197.01
5. Step 5: Solve for x
   x = 117,719,197.01/11,929.72
6. Step 6: Final answer
   x = 9,867.73