Finding the Fourth Proportional to 8,942.68, 12,341.52 and 5,167.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,942.68 : 12,341.52 = 5,167.12 : x
2. Step 2: Convert to fraction form
   8,942.68/12,341.52 = 5,167.12/x
3. Step 3: Cross multiply
   8,942.68x = 12,341.52 × 5,167.12
4. Step 4: Simplify right side
   8,942.68x = 63,770,114.82
5. Step 5: Solve for x
   x = 63,770,114.82/8,942.68
6. Step 6: Final answer
   x = 7,130.98