Finding the Fourth Proportional to 13,675.89, 18,872.70 and 7,388.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,675.89 : 18,872.70 = 7,388.25 : x
2. Step 2: Convert to fraction form
   13,675.89/18,872.70 = 7,388.25/x
3. Step 3: Cross multiply
   13,675.89x = 18,872.70 × 7,388.25
4. Step 4: Simplify right side
   13,675.89x = 139,436,225.78
5. Step 5: Solve for x
   x = 139,436,225.78/13,675.89
6. Step 6: Final answer
   x = 10,195.77