Finding the Fourth Proportional to 21,671.89, 32,449.40 and 14,156.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,671.89 : 32,449.40 = 14,156.83 : x
2. Step 2: Convert to fraction form
   21,671.89/32,449.40 = 14,156.83/x
3. Step 3: Cross multiply
   21,671.89x = 32,449.40 × 14,156.83
4. Step 4: Simplify right side
   21,671.89x = 459,380,639.40
5. Step 5: Solve for x
   x = 459,380,639.40/21,671.89
6. Step 6: Final answer
   x = 21,197.07