Finding the Fourth Proportional to 23,662.78, 32,644.38 and 13,588.90

Step by Step Solution

1. Step 1: Write the proportion equation
   23,662.78 : 32,644.38 = 13,588.90 : x
2. Step 2: Convert to fraction form
   23,662.78/32,644.38 = 13,588.90/x
3. Step 3: Cross multiply
   23,662.78x = 32,644.38 × 13,588.90
4. Step 4: Simplify right side
   23,662.78x = 443,601,215.38
5. Step 5: Solve for x
   x = 443,601,215.38/23,662.78
6. Step 6: Final answer
   x = 18,746.79