Finding the Fourth Proportional to 13,308.10, 18,364.82 and 7,339.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,308.10 : 18,364.82 = 7,339.37 : x
2. Step 2: Convert to fraction form
   13,308.10/18,364.82 = 7,339.37/x
3. Step 3: Cross multiply
   13,308.10x = 18,364.82 × 7,339.37
4. Step 4: Simplify right side
   13,308.10x = 134,786,080.44
5. Step 5: Solve for x
   x = 134,786,080.44/13,308.10
6. Step 6: Final answer
   x = 10,128.13