Finding the Fourth Proportional to 23,520.72, 32,457.44 and 12,910.16

Step by Step Solution

1. Step 1: Write the proportion equation
   23,520.72 : 32,457.44 = 12,910.16 : x
2. Step 2: Convert to fraction form
   23,520.72/32,457.44 = 12,910.16/x
3. Step 3: Cross multiply
   23,520.72x = 32,457.44 × 12,910.16
4. Step 4: Simplify right side
   23,520.72x = 419,030,743.59
5. Step 5: Solve for x
   x = 419,030,743.59/23,520.72
6. Step 6: Final answer
   x = 17,815.39