Finding the Fourth Proportional to 23,555.72, 32,506.52 and 12,945.13

Step by Step Solution

1. Step 1: Write the proportion equation
   23,555.72 : 32,506.52 = 12,945.13 : x
2. Step 2: Convert to fraction form
   23,555.72/32,506.52 = 12,945.13/x
3. Step 3: Cross multiply
   23,555.72x = 32,506.52 × 12,945.13
4. Step 4: Simplify right side
   23,555.72x = 420,800,964.72
5. Step 5: Solve for x
   x = 420,800,964.72/23,555.72
6. Step 6: Final answer
   x = 17,864.07