Finding the Fourth Proportional to 23,711.91, 32,725.72 and 13,640.17

Step by Step Solution

1. Step 1: Write the proportion equation
   23,711.91 : 32,725.72 = 13,640.17 : x
2. Step 2: Convert to fraction form
   23,711.91/32,725.72 = 13,640.17/x
3. Step 3: Cross multiply
   23,711.91x = 32,725.72 × 13,640.17
4. Step 4: Simplify right side
   23,711.91x = 446,384,472.81
5. Step 5: Solve for x
   x = 446,384,472.81/23,711.91
6. Step 6: Final answer
   x = 18,825.32