Finding the Fourth Proportional to 9,215.47, 13,764.47 and 8,336.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,215.47 : 13,764.47 = 8,336.62 : x
2. Step 2: Convert to fraction form
   9,215.47/13,764.47 = 8,336.62/x
3. Step 3: Cross multiply
   9,215.47x = 13,764.47 × 8,336.62
4. Step 4: Simplify right side
   9,215.47x = 114,749,155.89
5. Step 5: Solve for x
   x = 114,749,155.89/9,215.47
6. Step 6: Final answer
   x = 12,451.80