Finding the Fourth Proportional to 21,936.96, 32,871 and 14,920.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,936.96 : 32,871 = 14,920.32 : x
2. Step 2: Convert to fraction form
   21,936.96/32,871 = 14,920.32/x
3. Step 3: Cross multiply
   21,936.96x = 32,871 × 14,920.32
4. Step 4: Simplify right side
   21,936.96x = 490,445,838.72
5. Step 5: Solve for x
   x = 490,445,838.72/21,936.96
6. Step 6: Final answer
   x = 22,357.06