Finding the Fourth Proportional to 23,505.72, 32,439.94 and 12,897.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,505.72 : 32,439.94 = 12,897.42 : x
2. Step 2: Convert to fraction form
   23,505.72/32,439.94 = 12,897.42/x
3. Step 3: Cross multiply
   23,505.72x = 32,439.94 × 12,897.42
4. Step 4: Simplify right side
   23,505.72x = 418,391,530.95
5. Step 5: Solve for x
   x = 418,391,530.95/23,505.72
6. Step 6: Final answer
   x = 17,799.56