Finding the Fourth Proportional to 12,131.82, 18,173.64 and 9,348.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.82 : 18,173.64 = 9,348.84 : x
2. Step 2: Convert to fraction form
   12,131.82/18,173.64 = 9,348.84/x
3. Step 3: Cross multiply
   12,131.82x = 18,173.64 × 9,348.84
4. Step 4: Simplify right side
   12,131.82x = 169,902,452.58
5. Step 5: Solve for x
   x = 169,902,452.58/12,131.82
6. Step 6: Final answer
   x = 14,004.70