Finding the Fourth Proportional to 9,416.47, 12,994.70 and 5,167.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,416.47 : 12,994.70 = 5,167.61 : x
2. Step 2: Convert to fraction form
   9,416.47/12,994.70 = 5,167.61/x
3. Step 3: Cross multiply
   9,416.47x = 12,994.70 × 5,167.61
4. Step 4: Simplify right side
   9,416.47x = 67,151,450.86
5. Step 5: Solve for x
   x = 67,151,450.86/9,416.47
6. Step 6: Final answer
   x = 7,131.27