Finding the Fourth Proportional to 9,170.72, 12,650.76 and 5,807.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,170.72 : 12,650.76 = 5,807.60 : x
2. Step 2: Convert to fraction form
   9,170.72/12,650.76 = 5,807.60/x
3. Step 3: Cross multiply
   9,170.72x = 12,650.76 × 5,807.60
4. Step 4: Simplify right side
   9,170.72x = 73,470,553.78
5. Step 5: Solve for x
   x = 73,470,553.78/9,170.72
6. Step 6: Final answer
   x = 8,011.43