Finding the Fourth Proportional to 13,308.53, 18,365.89 and 7,340.41

Step by Step Solution

1. Step 1: Write the proportion equation
   13,308.53 : 18,365.89 = 7,340.41 : x
2. Step 2: Convert to fraction form
   13,308.53/18,365.89 = 7,340.41/x
3. Step 3: Cross multiply
   13,308.53x = 18,365.89 × 7,340.41
4. Step 4: Simplify right side
   13,308.53x = 134,813,070.79
5. Step 5: Solve for x
   x = 134,813,070.79/13,308.53
6. Step 6: Final answer
   x = 10,129.82