Finding the Fourth Proportional to 11,789.84, 17,685.04 and 3,889.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,789.84 : 17,685.04 = 3,889.82 : x
2. Step 2: Convert to fraction form
   11,789.84/17,685.04 = 3,889.82/x
3. Step 3: Cross multiply
   11,789.84x = 17,685.04 × 3,889.82
4. Step 4: Simplify right side
   11,789.84x = 68,791,622.29
5. Step 5: Solve for x
   x = 68,791,622.29/11,789.84
6. Step 6: Final answer
   x = 5,834.82