Finding the Fourth Proportional to 23,715.77, 32,727.86 and 12,960.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,715.77 : 32,727.86 = 12,960.86 : x
2. Step 2: Convert to fraction form
   23,715.77/32,727.86 = 12,960.86/x
3. Step 3: Cross multiply
   23,715.77x = 32,727.86 × 12,960.86
4. Step 4: Simplify right side
   23,715.77x = 424,180,983.12
5. Step 5: Solve for x
   x = 424,180,983.12/23,715.77
6. Step 6: Final answer
   x = 17,886.03