Finding the Fourth Proportional to 7,731.18, 10,667.17 and 5,217.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,731.18 : 10,667.17 = 5,217.94 : x
2. Step 2: Convert to fraction form
   7,731.18/10,667.17 = 5,217.94/x
3. Step 3: Cross multiply
   7,731.18x = 10,667.17 × 5,217.94
4. Step 4: Simplify right side
   7,731.18x = 55,660,653.03
5. Step 5: Solve for x
   x = 55,660,653.03/7,731.18
6. Step 6: Final answer
   x = 7,199.50