Finding the Fourth Proportional to 9,162.21, 12,643.74 and 5,184.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162.21 : 12,643.74 = 5,184.12 : x
2. Step 2: Convert to fraction form
   9,162.21/12,643.74 = 5,184.12/x
3. Step 3: Cross multiply
   9,162.21x = 12,643.74 × 5,184.12
4. Step 4: Simplify right side
   9,162.21x = 65,546,665.41
5. Step 5: Solve for x
   x = 65,546,665.41/9,162.21
6. Step 6: Final answer
   x = 7,154.02