Finding the Fourth Proportional to 12,185.83, 18,279.40 and 3,866.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185.83 : 18,279.40 = 3,866.48 : x
2. Step 2: Convert to fraction form
   12,185.83/18,279.40 = 3,866.48/x
3. Step 3: Cross multiply
   12,185.83x = 18,279.40 × 3,866.48
4. Step 4: Simplify right side
   12,185.83x = 70,676,934.51
5. Step 5: Solve for x
   x = 70,676,934.51/12,185.83
6. Step 6: Final answer
   x = 5,799.93