Finding the Fourth Proportional to 16,345.72, 22,556.42 and 9,271.99

Step by Step Solution

1. Step 1: Write the proportion equation
   16,345.72 : 22,556.42 = 9,271.99 : x
2. Step 2: Convert to fraction form
   16,345.72/22,556.42 = 9,271.99/x
3. Step 3: Cross multiply
   16,345.72x = 22,556.42 × 9,271.99
4. Step 4: Simplify right side
   16,345.72x = 209,142,811.07
5. Step 5: Solve for x
   x = 209,142,811.07/16,345.72
6. Step 6: Final answer
   x = 12,794.96