Finding the Fourth Proportional to 9,174.72, 12,661.02 and 5,195.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,174.72 : 12,661.02 = 5,195.72 : x
2. Step 2: Convert to fraction form
   9,174.72/12,661.02 = 5,195.72/x
3. Step 3: Cross multiply
   9,174.72x = 12,661.02 × 5,195.72
4. Step 4: Simplify right side
   9,174.72x = 65,783,114.83
5. Step 5: Solve for x
   x = 65,783,114.83/9,174.72
6. Step 6: Final answer
   x = 7,170.04