Finding the Fourth Proportional to 8,923.50, 12,314.43 and 5,197.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,923.50 : 12,314.43 = 5,197.50 : x
2. Step 2: Convert to fraction form
   8,923.50/12,314.43 = 5,197.50/x
3. Step 3: Cross multiply
   8,923.50x = 12,314.43 × 5,197.50
4. Step 4: Simplify right side
   8,923.50x = 64,004,249.93
5. Step 5: Solve for x
   x = 64,004,249.93/8,923.50
6. Step 6: Final answer
   x = 7,172.55