Finding the Fourth Proportional to 10,667.59, 14,720.97 and 6,191.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.59 : 14,720.97 = 6,191.71 : x
2. Step 2: Convert to fraction form
   10,667.59/14,720.97 = 6,191.71/x
3. Step 3: Cross multiply
   10,667.59x = 14,720.97 × 6,191.71
4. Step 4: Simplify right side
   10,667.59x = 91,147,977.16
5. Step 5: Solve for x
   x = 91,147,977.16/10,667.59
6. Step 6: Final answer
   x = 8,544.38