Finding the Fourth Proportional to 9,182.94, 12,672.18 and 5,405.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,182.94 : 12,672.18 = 5,405.24 : x
2. Step 2: Convert to fraction form
   9,182.94/12,672.18 = 5,405.24/x
3. Step 3: Cross multiply
   9,182.94x = 12,672.18 × 5,405.24
4. Step 4: Simplify right side
   9,182.94x = 68,496,110.86
5. Step 5: Solve for x
   x = 68,496,110.86/9,182.94
6. Step 6: Final answer
   x = 7,459.06