Finding the Fourth Proportional to 23,561.39, 32,514.90 and 12,951.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,561.39 : 32,514.90 = 12,951.20 : x
2. Step 2: Convert to fraction form
   23,561.39/32,514.90 = 12,951.20/x
3. Step 3: Cross multiply
   23,561.39x = 32,514.90 × 12,951.20
4. Step 4: Simplify right side
   23,561.39x = 421,106,972.88
5. Step 5: Solve for x
   x = 421,106,972.88/23,561.39
6. Step 6: Final answer
   x = 17,872.76