Finding the Fourth Proportional to 13,274.20, 18,317.56 and 7,608.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,274.20 : 18,317.56 = 7,608.96 : x
2. Step 2: Convert to fraction form
   13,274.20/18,317.56 = 7,608.96/x
3. Step 3: Cross multiply
   13,274.20x = 18,317.56 × 7,608.96
4. Step 4: Simplify right side
   13,274.20x = 139,377,581.34
5. Step 5: Solve for x
   x = 139,377,581.34/13,274.20
6. Step 6: Final answer
   x = 10,499.89