Finding the Fourth Proportional to 19,112.32, 26,374.72 and 10,728.96

Step by Step Solution

1. Step 1: Write the proportion equation
   19,112.32 : 26,374.72 = 10,728.96 : x
2. Step 2: Convert to fraction form
   19,112.32/26,374.72 = 10,728.96/x
3. Step 3: Cross multiply
   19,112.32x = 26,374.72 × 10,728.96
4. Step 4: Simplify right side
   19,112.32x = 282,973,315.89
5. Step 5: Solve for x
   x = 282,973,315.89/19,112.32
6. Step 6: Final answer
   x = 14,805.81