Finding the Fourth Proportional to 13,327.81, 18,392.38 and 7,359.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,327.81 : 18,392.38 = 7,359.49 : x
2. Step 2: Convert to fraction form
   13,327.81/18,392.38 = 7,359.49/x
3. Step 3: Cross multiply
   13,327.81x = 18,392.38 × 7,359.49
4. Step 4: Simplify right side
   13,327.81x = 135,358,499.89
5. Step 5: Solve for x
   x = 135,358,499.89/13,327.81
6. Step 6: Final answer
   x = 10,156.09