Finding the Fourth Proportional to 19,619.91, 27,074.88 and 10,667.43

Step by Step Solution

1. Step 1: Write the proportion equation
   19,619.91 : 27,074.88 = 10,667.43 : x
2. Step 2: Convert to fraction form
   19,619.91/27,074.88 = 10,667.43/x
3. Step 3: Cross multiply
   19,619.91x = 27,074.88 × 10,667.43
4. Step 4: Simplify right side
   19,619.91x = 288,819,387.16
5. Step 5: Solve for x
   x = 288,819,387.16/19,619.91
6. Step 6: Final answer
   x = 14,720.73