Finding the Fourth Proportional to 11,427.63, 17,141.82 and 3,931.11

Step by Step Solution

1. Step 1: Write the proportion equation
   11,427.63 : 17,141.82 = 3,931.11 : x
2. Step 2: Convert to fraction form
   11,427.63/17,141.82 = 3,931.11/x
3. Step 3: Cross multiply
   11,427.63x = 17,141.82 × 3,931.11
4. Step 4: Simplify right side
   11,427.63x = 67,386,380.02
5. Step 5: Solve for x
   x = 67,386,380.02/11,427.63
6. Step 6: Final answer
   x = 5,896.79