Finding the Fourth Proportional to 19,987.56, 29,942.34 and 13,041

Step by Step Solution

1. Step 1: Write the proportion equation
   19,987.56 : 29,942.34 = 13,041 : x
2. Step 2: Convert to fraction form
   19,987.56/29,942.34 = 13,041/x
3. Step 3: Cross multiply
   19,987.56x = 29,942.34 × 13,041
4. Step 4: Simplify right side
   19,987.56x = 390,478,055.94
5. Step 5: Solve for x
   x = 390,478,055.94/19,987.56
6. Step 6: Final answer
   x = 19,536.05