Finding the Fourth Proportional to 13,178.82, 18,185.46 and 7,514.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,178.82 : 18,185.46 = 7,514.48 : x
2. Step 2: Convert to fraction form
   13,178.82/18,185.46 = 7,514.48/x
3. Step 3: Cross multiply
   13,178.82x = 18,185.46 × 7,514.48
4. Step 4: Simplify right side
   13,178.82x = 136,654,275.46
5. Step 5: Solve for x
   x = 136,654,275.46/13,178.82
6. Step 6: Final answer
   x = 10,369.23