Finding the Fourth Proportional to 8,866.72, 12,236.52 and 5,090.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,866.72 : 12,236.52 = 5,090.48 : x
2. Step 2: Convert to fraction form
   8,866.72/12,236.52 = 5,090.48/x
3. Step 3: Cross multiply
   8,866.72x = 12,236.52 × 5,090.48
4. Step 4: Simplify right side
   8,866.72x = 62,289,760.33
5. Step 5: Solve for x
   x = 62,289,760.33/8,866.72
6. Step 6: Final answer
   x = 7,025.12