Finding the Fourth Proportional to 14,868.50, 20,518.56 and 8,900.42

Step by Step Solution

1. Step 1: Write the proportion equation
   14,868.50 : 20,518.56 = 8,900.42 : x
2. Step 2: Convert to fraction form
   14,868.50/20,518.56 = 8,900.42/x
3. Step 3: Cross multiply
   14,868.50x = 20,518.56 × 8,900.42
4. Step 4: Simplify right side
   14,868.50x = 182,623,801.80
5. Step 5: Solve for x
   x = 182,623,801.80/14,868.50
6. Step 6: Final answer
   x = 12,282.60