Finding the Fourth Proportional to 13,173.42, 18,180.54 and 7,205.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,173.42 : 18,180.54 = 7,205.94 : x
2. Step 2: Convert to fraction form
   13,173.42/18,180.54 = 7,205.94/x
3. Step 3: Cross multiply
   13,173.42x = 18,180.54 × 7,205.94
4. Step 4: Simplify right side
   13,173.42x = 131,007,880.41
5. Step 5: Solve for x
   x = 131,007,880.41/13,173.42
6. Step 6: Final answer
   x = 9,944.86