Finding the Fourth Proportional to 13,308.41, 18,365.72 and 7,340.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,308.41 : 18,365.72 = 7,340.28 : x
2. Step 2: Convert to fraction form
   13,308.41/18,365.72 = 7,340.28/x
3. Step 3: Cross multiply
   13,308.41x = 18,365.72 × 7,340.28
4. Step 4: Simplify right side
   13,308.41x = 134,809,527.20
5. Step 5: Solve for x
   x = 134,809,527.20/13,308.41
6. Step 6: Final answer
   x = 10,129.65