Finding the Fourth Proportional to 19,419.82, 29,109.54 and 13,180.34

Step by Step Solution

1. Step 1: Write the proportion equation
   19,419.82 : 29,109.54 = 13,180.34 : x
2. Step 2: Convert to fraction form
   19,419.82/29,109.54 = 13,180.34/x
3. Step 3: Cross multiply
   19,419.82x = 29,109.54 × 13,180.34
4. Step 4: Simplify right side
   19,419.82x = 383,673,634.44
5. Step 5: Solve for x
   x = 383,673,634.44/19,419.82
6. Step 6: Final answer
   x = 19,756.81