Finding the Fourth Proportional to 11,791.84, 17,688.04 and 3,891.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,791.84 : 17,688.04 = 3,891.82 : x
2. Step 2: Convert to fraction form
   11,791.84/17,688.04 = 3,891.82/x
3. Step 3: Cross multiply
   11,791.84x = 17,688.04 × 3,891.82
4. Step 4: Simplify right side
   11,791.84x = 68,838,667.83
5. Step 5: Solve for x
   x = 68,838,667.83/11,791.84
6. Step 6: Final answer
   x = 5,837.82