Finding the Fourth Proportional to 9,194.79, 13,765.59 and 8,245.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,194.79 : 13,765.59 = 8,245.20 : x
2. Step 2: Convert to fraction form
   9,194.79/13,765.59 = 8,245.20/x
3. Step 3: Cross multiply
   9,194.79x = 13,765.59 × 8,245.20
4. Step 4: Simplify right side
   9,194.79x = 113,500,042.67
5. Step 5: Solve for x
   x = 113,500,042.67/9,194.79
6. Step 6: Final answer
   x = 12,343.95