Finding the Fourth Proportional to 8,806.51, 13,210.58 and 3,185.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,806.51 : 13,210.58 = 3,185.59 : x
2. Step 2: Convert to fraction form
   8,806.51/13,210.58 = 3,185.59/x
3. Step 3: Cross multiply
   8,806.51x = 13,210.58 × 3,185.59
4. Step 4: Simplify right side
   8,806.51x = 42,083,491.54
5. Step 5: Solve for x
   x = 42,083,491.54/8,806.51
6. Step 6: Final answer
   x = 4,778.68