Finding the Fourth Proportional to 21,652, 32,454.72 and 9,169.12

Step by Step Solution

1. Step 1: Write the proportion equation
   21,652 : 32,454.72 = 9,169.12 : x
2. Step 2: Convert to fraction form
   21,652/32,454.72 = 9,169.12/x
3. Step 3: Cross multiply
   21,652x = 32,454.72 × 9,169.12
4. Step 4: Simplify right side
   21,652x = 297,581,222.25
5. Step 5: Solve for x
   x = 297,581,222.25/21,652
6. Step 6: Final answer
   x = 13,743.82