Finding the Fourth Proportional to 16,976.72, 23,427.72 and 9,525.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,976.72 : 23,427.72 = 9,525.20 : x
2. Step 2: Convert to fraction form
   16,976.72/23,427.72 = 9,525.20/x
3. Step 3: Cross multiply
   16,976.72x = 23,427.72 × 9,525.20
4. Step 4: Simplify right side
   16,976.72x = 223,153,718.54
5. Step 5: Solve for x
   x = 223,153,718.54/16,976.72
6. Step 6: Final answer
   x = 13,144.69