Finding the Fourth Proportional to 21,496.46, 29,664.71 and 11,936.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,496.46 : 29,664.71 = 11,936.37 : x
2. Step 2: Convert to fraction form
   21,496.46/29,664.71 = 11,936.37/x
3. Step 3: Cross multiply
   21,496.46x = 29,664.71 × 11,936.37
4. Step 4: Simplify right side
   21,496.46x = 354,089,050.82
5. Step 5: Solve for x
   x = 354,089,050.82/21,496.46
6. Step 6: Final answer
   x = 16,471.97