Finding the Fourth Proportional to 9,411.27, 12,986.79 and 5,162.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.27 : 12,986.79 = 5,162.25 : x
2. Step 2: Convert to fraction form
   9,411.27/12,986.79 = 5,162.25/x
3. Step 3: Cross multiply
   9,411.27x = 12,986.79 × 5,162.25
4. Step 4: Simplify right side
   9,411.27x = 67,041,056.68
5. Step 5: Solve for x
   x = 67,041,056.68/9,411.27
6. Step 6: Final answer
   x = 7,123.49