Finding the Fourth Proportional to 10,785.78, 14,879.57 and 8,804.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,785.78 : 14,879.57 = 8,804.52 : x
2. Step 2: Convert to fraction form
   10,785.78/14,879.57 = 8,804.52/x
3. Step 3: Cross multiply
   10,785.78x = 14,879.57 × 8,804.52
4. Step 4: Simplify right side
   10,785.78x = 131,007,427.63
5. Step 5: Solve for x
   x = 131,007,427.63/10,785.78
6. Step 6: Final answer
   x = 12,146.31