Finding the Fourth Proportional to 12,858.71, 19,274.83 and 5,843.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,858.71 : 19,274.83 = 5,843.60 : x
2. Step 2: Convert to fraction form
   12,858.71/19,274.83 = 5,843.60/x
3. Step 3: Cross multiply
   12,858.71x = 19,274.83 × 5,843.60
4. Step 4: Simplify right side
   12,858.71x = 112,634,357.89
5. Step 5: Solve for x
   x = 112,634,357.89/12,858.71
6. Step 6: Final answer
   x = 8,759.39