Finding the Fourth Proportional to 8,196.65, 12,290.64 and 3,577.13

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.65 : 12,290.64 = 3,577.13 : x
2. Step 2: Convert to fraction form
   8,196.65/12,290.64 = 3,577.13/x
3. Step 3: Cross multiply
   8,196.65x = 12,290.64 × 3,577.13
4. Step 4: Simplify right side
   8,196.65x = 43,965,155.61
5. Step 5: Solve for x
   x = 43,965,155.61/8,196.65
6. Step 6: Final answer
   x = 5,363.80