Finding the Fourth Proportional to 21,785.69, 32,626.69 and 12,532.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,785.69 : 32,626.69 = 12,532.25 : x
2. Step 2: Convert to fraction form
   21,785.69/32,626.69 = 12,532.25/x
3. Step 3: Cross multiply
   21,785.69x = 32,626.69 × 12,532.25
4. Step 4: Simplify right side
   21,785.69x = 408,885,835.75
5. Step 5: Solve for x
   x = 408,885,835.75/21,785.69
6. Step 6: Final answer
   x = 18,768.55