Finding the Fourth Proportional to 16,698.72, 23,043.84 and 9,624.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,698.72 : 23,043.84 = 9,624.72 : x
2. Step 2: Convert to fraction form
   16,698.72/23,043.84 = 9,624.72/x
3. Step 3: Cross multiply
   16,698.72x = 23,043.84 × 9,624.72
4. Step 4: Simplify right side
   16,698.72x = 221,790,507.72
5. Step 5: Solve for x
   x = 221,790,507.72/16,698.72
6. Step 6: Final answer
   x = 13,281.89