Finding the Fourth Proportional to 21,680.57, 32,504.92 and 9,667.60

Step by Step Solution

1. Step 1: Write the proportion equation
   21,680.57 : 32,504.92 = 9,667.60 : x
2. Step 2: Convert to fraction form
   21,680.57/32,504.92 = 9,667.60/x
3. Step 3: Cross multiply
   21,680.57x = 32,504.92 × 9,667.60
4. Step 4: Simplify right side
   21,680.57x = 314,244,564.59
5. Step 5: Solve for x
   x = 314,244,564.59/21,680.57
6. Step 6: Final answer
   x = 14,494.29