Finding the Fourth Proportional to 12,256.82, 18,386.74 and 3,935.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,256.82 : 18,386.74 = 3,935.89 : x
2. Step 2: Convert to fraction form
   12,256.82/18,386.74 = 3,935.89/x
3. Step 3: Cross multiply
   12,256.82x = 18,386.74 × 3,935.89
4. Step 4: Simplify right side
   12,256.82x = 72,368,094.16
5. Step 5: Solve for x
   x = 72,368,094.16/12,256.82
6. Step 6: Final answer
   x = 5,904.31