Finding the Fourth Proportional to 13,307.63, 18,365.37 and 7,339.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,307.63 : 18,365.37 = 7,339.31 : x
2. Step 2: Convert to fraction form
   13,307.63/18,365.37 = 7,339.31/x
3. Step 3: Cross multiply
   13,307.63x = 18,365.37 × 7,339.31
4. Step 4: Simplify right side
   13,307.63x = 134,789,143.69
5. Step 5: Solve for x
   x = 134,789,143.69/13,307.63
6. Step 6: Final answer
   x = 10,128.71