Finding the Fourth Proportional to 12,154.56, 16,757.94 and 9,914.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,154.56 : 16,757.94 = 9,914.16 : x
2. Step 2: Convert to fraction form
   12,154.56/16,757.94 = 9,914.16/x
3. Step 3: Cross multiply
   12,154.56x = 16,757.94 × 9,914.16
4. Step 4: Simplify right side
   12,154.56x = 166,140,898.43
5. Step 5: Solve for x
   x = 166,140,898.43/12,154.56
6. Step 6: Final answer
   x = 13,669.02