Finding the Fourth Proportional to 16,243.72, 24,345.95 and 7,911.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,243.72 : 24,345.95 = 7,911.25 : x
2. Step 2: Convert to fraction form
   16,243.72/24,345.95 = 7,911.25/x
3. Step 3: Cross multiply
   16,243.72x = 24,345.95 × 7,911.25
4. Step 4: Simplify right side
   16,243.72x = 192,606,775.21
5. Step 5: Solve for x
   x = 192,606,775.21/16,243.72
6. Step 6: Final answer
   x = 11,857.31