Finding the Fourth Proportional to 13,253.52, 18,282.90 and 8,216.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,253.52 : 18,282.90 = 8,216.10 : x
2. Step 2: Convert to fraction form
   13,253.52/18,282.90 = 8,216.10/x
3. Step 3: Cross multiply
   13,253.52x = 18,282.90 × 8,216.10
4. Step 4: Simplify right side
   13,253.52x = 150,214,134.69
5. Step 5: Solve for x
   x = 150,214,134.69/13,253.52
6. Step 6: Final answer
   x = 11,333.90