Finding the Fourth Proportional to 23,638.28, 32,620.72 and 13,027.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,638.28 : 32,620.72 = 13,027.89 : x
2. Step 2: Convert to fraction form
   23,638.28/32,620.72 = 13,027.89/x
3. Step 3: Cross multiply
   23,638.28x = 32,620.72 × 13,027.89
4. Step 4: Simplify right side
   23,638.28x = 424,979,151.88
5. Step 5: Solve for x
   x = 424,979,151.88/23,638.28
6. Step 6: Final answer
   x = 17,978.43