Finding the Fourth Proportional to 19,111.59, 26,374.02 and 10,728.09

Step by Step Solution

1. Step 1: Write the proportion equation
   19,111.59 : 26,374.02 = 10,728.09 : x
2. Step 2: Convert to fraction form
   19,111.59/26,374.02 = 10,728.09/x
3. Step 3: Cross multiply
   19,111.59x = 26,374.02 × 10,728.09
4. Step 4: Simplify right side
   19,111.59x = 282,942,860.22
5. Step 5: Solve for x
   x = 282,942,860.22/19,111.59
6. Step 6: Final answer
   x = 14,804.78