Finding the Fourth Proportional to 12,906.09, 19,362.17 and 4,585.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906.09 : 19,362.17 = 4,585.77 : x
2. Step 2: Convert to fraction form
   12,906.09/19,362.17 = 4,585.77/x
3. Step 3: Cross multiply
   12,906.09x = 19,362.17 × 4,585.77
4. Step 4: Simplify right side
   12,906.09x = 88,790,458.32
5. Step 5: Solve for x
   x = 88,790,458.32/12,906.09
6. Step 6: Final answer
   x = 6,879.73