Finding the Fourth Proportional to 23,245.72, 32,079.72 and 12,636.07

Step by Step Solution

1. Step 1: Write the proportion equation
   23,245.72 : 32,079.72 = 12,636.07 : x
2. Step 2: Convert to fraction form
   23,245.72/32,079.72 = 12,636.07/x
3. Step 3: Cross multiply
   23,245.72x = 32,079.72 × 12,636.07
4. Step 4: Simplify right side
   23,245.72x = 405,361,587.50
5. Step 5: Solve for x
   x = 405,361,587.50/23,245.72
6. Step 6: Final answer
   x = 17,438.12