Finding the Fourth Proportional to 9,416.27, 12,994.41 and 5,167.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,416.27 : 12,994.41 = 5,167.40 : x
2. Step 2: Convert to fraction form
   9,416.27/12,994.41 = 5,167.40/x
3. Step 3: Cross multiply
   9,416.27x = 12,994.41 × 5,167.40
4. Step 4: Simplify right side
   9,416.27x = 67,147,281.75
5. Step 5: Solve for x
   x = 67,147,281.75/9,416.27
6. Step 6: Final answer
   x = 7,130.99