Finding the Fourth Proportional to 20,593.96, 28,422.72 and 13,041

Step by Step Solution

1. Step 1: Write the proportion equation
   20,593.96 : 28,422.72 = 13,041 : x
2. Step 2: Convert to fraction form
   20,593.96/28,422.72 = 13,041/x
3. Step 3: Cross multiply
   20,593.96x = 28,422.72 × 13,041
4. Step 4: Simplify right side
   20,593.96x = 370,660,691.52
5. Step 5: Solve for x
   x = 370,660,691.52/20,593.96
6. Step 6: Final answer
   x = 17,998.51