Finding the Fourth Proportional to 8,356.64, 12,601.31 and 8,245.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,356.64 : 12,601.31 = 8,245.46 : x
2. Step 2: Convert to fraction form
   8,356.64/12,601.31 = 8,245.46/x
3. Step 3: Cross multiply
   8,356.64x = 12,601.31 × 8,245.46
4. Step 4: Simplify right side
   8,356.64x = 103,903,587.83
5. Step 5: Solve for x
   x = 103,903,587.83/8,356.64
6. Step 6: Final answer
   x = 12,433.66