Finding the Fourth Proportional to 9,179.27, 12,667.55 and 5,200.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,179.27 : 12,667.55 = 5,200.37 : x
2. Step 2: Convert to fraction form
   9,179.27/12,667.55 = 5,200.37/x
3. Step 3: Cross multiply
   9,179.27x = 12,667.55 × 5,200.37
4. Step 4: Simplify right side
   9,179.27x = 65,875,946.99
5. Step 5: Solve for x
   x = 65,875,946.99/9,179.27
6. Step 6: Final answer
   x = 7,176.60