Finding the Fourth Proportional to 8,836.47, 12,196.62 and 5,477.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,836.47 : 12,196.62 = 5,477.31 : x
2. Step 2: Convert to fraction form
   8,836.47/12,196.62 = 5,477.31/x
3. Step 3: Cross multiply
   8,836.47x = 12,196.62 × 5,477.31
4. Step 4: Simplify right side
   8,836.47x = 66,804,668.69
5. Step 5: Solve for x
   x = 66,804,668.69/8,836.47
6. Step 6: Final answer
   x = 7,560.11