Finding the Fourth Proportional to 9,131.06, 13,696.47 and 2,205.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.06 : 13,696.47 = 2,205.50 : x
2. Step 2: Convert to fraction form
   9,131.06/13,696.47 = 2,205.50/x
3. Step 3: Cross multiply
   9,131.06x = 13,696.47 × 2,205.50
4. Step 4: Simplify right side
   9,131.06x = 30,207,564.59
5. Step 5: Solve for x
   x = 30,207,564.59/9,131.06
6. Step 6: Final answer
   x = 3,308.22