Finding the Fourth Proportional to 12,662.32, 18,992.94 and 3,896.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662.32 : 18,992.94 = 3,896.86 : x
2. Step 2: Convert to fraction form
   12,662.32/18,992.94 = 3,896.86/x
3. Step 3: Cross multiply
   12,662.32x = 18,992.94 × 3,896.86
4. Step 4: Simplify right side
   12,662.32x = 74,012,828.17
5. Step 5: Solve for x
   x = 74,012,828.17/12,662.32
6. Step 6: Final answer
   x = 5,845.12