Finding the Fourth Proportional to 13,308.54, 18,365.49 and 7,340.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,308.54 : 18,365.49 = 7,340.10 : x
2. Step 2: Convert to fraction form
   13,308.54/18,365.49 = 7,340.10/x
3. Step 3: Cross multiply
   13,308.54x = 18,365.49 × 7,340.10
4. Step 4: Simplify right side
   13,308.54x = 134,804,533.15
5. Step 5: Solve for x
   x = 134,804,533.15/13,308.54
6. Step 6: Final answer
   x = 10,129.18