Finding the Fourth Proportional to 9,200.72, 13,730.37 and 8,216.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,200.72 : 13,730.37 = 8,216.52 : x
2. Step 2: Convert to fraction form
   9,200.72/13,730.37 = 8,216.52/x
3. Step 3: Cross multiply
   9,200.72x = 13,730.37 × 8,216.52
4. Step 4: Simplify right side
   9,200.72x = 112,815,859.71
5. Step 5: Solve for x
   x = 112,815,859.71/9,200.72
6. Step 6: Final answer
   x = 12,261.63