Finding the Fourth Proportional to 9,405.12, 12,995.98 and 6,747.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,405.12 : 12,995.98 = 6,747.86 : x
2. Step 2: Convert to fraction form
   9,405.12/12,995.98 = 6,747.86/x
3. Step 3: Cross multiply
   9,405.12x = 12,995.98 × 6,747.86
4. Step 4: Simplify right side
   9,405.12x = 87,695,053.60
5. Step 5: Solve for x
   x = 87,695,053.60/9,405.12
6. Step 6: Final answer
   x = 9,324.18