Finding the Fourth Proportional to 13,196.93, 18,199.59 and 8,954.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.93 : 18,199.59 = 8,954.15 : x
2. Step 2: Convert to fraction form
   13,196.93/18,199.59 = 8,954.15/x
3. Step 3: Cross multiply
   13,196.93x = 18,199.59 × 8,954.15
4. Step 4: Simplify right side
   13,196.93x = 162,961,734.22
5. Step 5: Solve for x
   x = 162,961,734.22/13,196.93
6. Step 6: Final answer
   x = 12,348.46