Finding the Fourth Proportional to 16,225.76, 22,393.79 and 9,513.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,225.76 : 22,393.79 = 9,513.04 : x
2. Step 2: Convert to fraction form
   16,225.76/22,393.79 = 9,513.04/x
3. Step 3: Cross multiply
   16,225.76x = 22,393.79 × 9,513.04
4. Step 4: Simplify right side
   16,225.76x = 213,033,020.02
5. Step 5: Solve for x
   x = 213,033,020.02/16,225.76
6. Step 6: Final answer
   x = 13,129.31