Finding the Fourth Proportional to 19,667.18, 27,140.46 and 10,715.06

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.18 : 27,140.46 = 10,715.06 : x
2. Step 2: Convert to fraction form
   19,667.18/27,140.46 = 10,715.06/x
3. Step 3: Cross multiply
   19,667.18x = 27,140.46 × 10,715.06
4. Step 4: Simplify right side
   19,667.18x = 290,811,657.33
5. Step 5: Solve for x
   x = 290,811,657.33/19,667.18
6. Step 6: Final answer
   x = 14,786.65