Finding the Fourth Proportional to 13,308.24, 18,365.34 and 7,340

Step by Step Solution

1. Step 1: Write the proportion equation
   13,308.24 : 18,365.34 = 7,340 : x
2. Step 2: Convert to fraction form
   13,308.24/18,365.34 = 7,340/x
3. Step 3: Cross multiply
   13,308.24x = 18,365.34 × 7,340
4. Step 4: Simplify right side
   13,308.24x = 134,801,595.60
5. Step 5: Solve for x
   x = 134,801,595.60/13,308.24
6. Step 6: Final answer
   x = 10,129.18