Finding the Fourth Proportional to 23,507.31, 32,440.09 and 12,896.94

Step by Step Solution

1. Step 1: Write the proportion equation
   23,507.31 : 32,440.09 = 12,896.94 : x
2. Step 2: Convert to fraction form
   23,507.31/32,440.09 = 12,896.94/x
3. Step 3: Cross multiply
   23,507.31x = 32,440.09 × 12,896.94
4. Step 4: Simplify right side
   23,507.31x = 418,377,732.12
5. Step 5: Solve for x
   x = 418,377,732.12/23,507.31
6. Step 6: Final answer
   x = 17,797.78