Finding the Fourth Proportional to 19,342.41, 28,947.33 and 13,426.02

Step by Step Solution

1. Step 1: Write the proportion equation
   19,342.41 : 28,947.33 = 13,426.02 : x
2. Step 2: Convert to fraction form
   19,342.41/28,947.33 = 13,426.02/x
3. Step 3: Cross multiply
   19,342.41x = 28,947.33 × 13,426.02
4. Step 4: Simplify right side
   19,342.41x = 388,647,431.53
5. Step 5: Solve for x
   x = 388,647,431.53/19,342.41
6. Step 6: Final answer
   x = 20,093.02