Finding the Fourth Proportional to 12,321.72, 18,446.94 and 10,932.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,321.72 : 18,446.94 = 10,932.30 : x
2. Step 2: Convert to fraction form
   12,321.72/18,446.94 = 10,932.30/x
3. Step 3: Cross multiply
   12,321.72x = 18,446.94 × 10,932.30
4. Step 4: Simplify right side
   12,321.72x = 201,667,482.16
5. Step 5: Solve for x
   x = 201,667,482.16/12,321.72
6. Step 6: Final answer
   x = 16,366.83