Finding the Fourth Proportional to 8,322.69, 12,473.24 and 3,386.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,322.69 : 12,473.24 = 3,386.60 : x
2. Step 2: Convert to fraction form
   8,322.69/12,473.24 = 3,386.60/x
3. Step 3: Cross multiply
   8,322.69x = 12,473.24 × 3,386.60
4. Step 4: Simplify right side
   8,322.69x = 42,241,795.28
5. Step 5: Solve for x
   x = 42,241,795.28/8,322.69
6. Step 6: Final answer
   x = 5,075.50