Finding the Fourth Proportional to 19,769.33, 27,280.50 and 10,815.05

Step by Step Solution

1. Step 1: Write the proportion equation
   19,769.33 : 27,280.50 = 10,815.05 : x
2. Step 2: Convert to fraction form
   19,769.33/27,280.50 = 10,815.05/x
3. Step 3: Cross multiply
   19,769.33x = 27,280.50 × 10,815.05
4. Step 4: Simplify right side
   19,769.33x = 295,039,835.12
5. Step 5: Solve for x
   x = 295,039,835.12/19,769.33
6. Step 6: Final answer
   x = 14,924.12