Finding the Fourth Proportional to 19,767.96, 27,280.42 and 10,815.46

Step by Step Solution

1. Step 1: Write the proportion equation
   19,767.96 : 27,280.42 = 10,815.46 : x
2. Step 2: Convert to fraction form
   19,767.96/27,280.42 = 10,815.46/x
3. Step 3: Cross multiply
   19,767.96x = 27,280.42 × 10,815.46
4. Step 4: Simplify right side
   19,767.96x = 295,050,196.05
5. Step 5: Solve for x
   x = 295,050,196.05/19,767.96
6. Step 6: Final answer
   x = 14,925.68