Finding the Fourth Proportional to 23,638.46, 32,621.28 and 13,028.46

Step by Step Solution

1. Step 1: Write the proportion equation
   23,638.46 : 32,621.28 = 13,028.46 : x
2. Step 2: Convert to fraction form
   23,638.46/32,621.28 = 13,028.46/x
3. Step 3: Cross multiply
   23,638.46x = 32,621.28 × 13,028.46
4. Step 4: Simplify right side
   23,638.46x = 425,005,041.63
5. Step 5: Solve for x
   x = 425,005,041.63/23,638.46
6. Step 6: Final answer
   x = 17,979.39