Finding the Fourth Proportional to 19,667.34, 27,128.53 and 11,703.62

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.34 : 27,128.53 = 11,703.62 : x
2. Step 2: Convert to fraction form
   19,667.34/27,128.53 = 11,703.62/x
3. Step 3: Cross multiply
   19,667.34x = 27,128.53 × 11,703.62
4. Step 4: Simplify right side
   19,667.34x = 317,502,006.28
5. Step 5: Solve for x
   x = 317,502,006.28/19,667.34
6. Step 6: Final answer
   x = 16,143.62