Finding the Fourth Proportional to 16,646.84, 24,957.95 and 7,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,646.84 : 24,957.95 = 7,871.50 : x
2. Step 2: Convert to fraction form
   16,646.84/24,957.95 = 7,871.50/x
3. Step 3: Cross multiply
   16,646.84x = 24,957.95 × 7,871.50
4. Step 4: Simplify right side
   16,646.84x = 196,456,503.43
5. Step 5: Solve for x
   x = 196,456,503.43/16,646.84
6. Step 6: Final answer
   x = 11,801.43