Finding the Fourth Proportional to 15,740.60, 21,722.00 and 8,667.02

Step by Step Solution

1. Step 1: Write the proportion equation
   15,740.60 : 21,722.00 = 8,667.02 : x
2. Step 2: Convert to fraction form
   15,740.60/21,722.00 = 8,667.02/x
3. Step 3: Cross multiply
   15,740.60x = 21,722.00 × 8,667.02
4. Step 4: Simplify right side
   15,740.60x = 188,265,019.41
5. Step 5: Solve for x
   x = 188,265,019.41/15,740.60
6. Step 6: Final answer
   x = 11,960.48