Finding the Fourth Proportional to 23,638.72, 35,424.60 and 13,113.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,638.72 : 35,424.60 = 13,113.34 : x
2. Step 2: Convert to fraction form
   23,638.72/35,424.60 = 13,113.34/x
3. Step 3: Cross multiply
   23,638.72x = 35,424.60 × 13,113.34
4. Step 4: Simplify right side
   23,638.72x = 464,534,824.16
5. Step 5: Solve for x
   x = 464,534,824.16/23,638.72
6. Step 6: Final answer
   x = 19,651.44