Finding the Fourth Proportional to 23,589.72, 32,552.61 and 12,980.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,589.72 : 32,552.61 = 12,980.34 : x
2. Step 2: Convert to fraction form
   23,589.72/32,552.61 = 12,980.34/x
3. Step 3: Cross multiply
   23,589.72x = 32,552.61 × 12,980.34
4. Step 4: Simplify right side
   23,589.72x = 422,543,945.69
5. Step 5: Solve for x
   x = 422,543,945.69/23,589.72
6. Step 6: Final answer
   x = 17,912.21