Finding the Fourth Proportional to 13,317.39, 18,377.82 and 7,349.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,317.39 : 18,377.82 = 7,349.18 : x
2. Step 2: Convert to fraction form
   13,317.39/18,377.82 = 7,349.18/x
3. Step 3: Cross multiply
   13,317.39x = 18,377.82 × 7,349.18
4. Step 4: Simplify right side
   13,317.39x = 135,061,815.30
5. Step 5: Solve for x
   x = 135,061,815.30/13,317.39
6. Step 6: Final answer
   x = 10,141.76