Finding the Fourth Proportional to 8,136.89, 12,206.54 and 2,588.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,136.89 : 12,206.54 = 2,588.59 : x
2. Step 2: Convert to fraction form
   8,136.89/12,206.54 = 2,588.59/x
3. Step 3: Cross multiply
   8,136.89x = 12,206.54 × 2,588.59
4. Step 4: Simplify right side
   8,136.89x = 31,597,703.33
5. Step 5: Solve for x
   x = 31,597,703.33/8,136.89
6. Step 6: Final answer
   x = 3,883.27