Finding the Fourth Proportional to 5,665.72, 7,816.51 and 4,177.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,665.72 : 7,816.51 = 4,177.18 : x
2. Step 2: Convert to fraction form
   5,665.72/7,816.51 = 4,177.18/x
3. Step 3: Cross multiply
   5,665.72x = 7,816.51 × 4,177.18
4. Step 4: Simplify right side
   5,665.72x = 32,650,909.27
5. Step 5: Solve for x
   x = 32,650,909.27/5,665.72
6. Step 6: Final answer
   x = 5,762.89