Finding the Fourth Proportional to 19,162.28, 28,757.40 and 9,810.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,162.28 : 28,757.40 = 9,810.12 : x
2. Step 2: Convert to fraction form
   19,162.28/28,757.40 = 9,810.12/x
3. Step 3: Cross multiply
   19,162.28x = 28,757.40 × 9,810.12
4. Step 4: Simplify right side
   19,162.28x = 282,113,544.89
5. Step 5: Solve for x
   x = 282,113,544.89/19,162.28
6. Step 6: Final answer
   x = 14,722.34