Finding the Fourth Proportional to 13,096.60, 18,078.42 and 8,383.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,096.60 : 18,078.42 = 8,383.48 : x
2. Step 2: Convert to fraction form
   13,096.60/18,078.42 = 8,383.48/x
3. Step 3: Cross multiply
   13,096.60x = 18,078.42 × 8,383.48
4. Step 4: Simplify right side
   13,096.60x = 151,560,072.50
5. Step 5: Solve for x
   x = 151,560,072.50/13,096.60
6. Step 6: Final answer
   x = 11,572.47