Finding the Fourth Proportional to 19,863.34, 27,419.98 and 13,152.22

Step by Step Solution

1. Step 1: Write the proportion equation
   19,863.34 : 27,419.98 = 13,152.22 : x
2. Step 2: Convert to fraction form
   19,863.34/27,419.98 = 13,152.22/x
3. Step 3: Cross multiply
   19,863.34x = 27,419.98 × 13,152.22
4. Step 4: Simplify right side
   19,863.34x = 360,633,609.36
5. Step 5: Solve for x
   x = 360,633,609.36/19,863.34
6. Step 6: Final answer
   x = 18,155.74