Finding the Fourth Proportional to 23,663.34, 32,654.97 and 12,908.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,663.34 : 32,654.97 = 12,908.31 : x
2. Step 2: Convert to fraction form
   23,663.34/32,654.97 = 12,908.31/x
3. Step 3: Cross multiply
   23,663.34x = 32,654.97 × 12,908.31
4. Step 4: Simplify right side
   23,663.34x = 421,520,475.80
5. Step 5: Solve for x
   x = 421,520,475.80/23,663.34
6. Step 6: Final answer
   x = 17,813.23