Finding the Fourth Proportional to 12,123.96, 16,711.56 and 9,052.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.96 : 16,711.56 = 9,052.85 : x
2. Step 2: Convert to fraction form
   12,123.96/16,711.56 = 9,052.85/x
3. Step 3: Cross multiply
   12,123.96x = 16,711.56 × 9,052.85
4. Step 4: Simplify right side
   12,123.96x = 151,287,162.39
5. Step 5: Solve for x
   x = 151,287,162.39/12,123.96
6. Step 6: Final answer
   x = 12,478.36