Finding the Fourth Proportional to 7,020.27, 9,679.53 and 5,677.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,020.27 : 9,679.53 = 5,677.32 : x
2. Step 2: Convert to fraction form
   7,020.27/9,679.53 = 5,677.32/x
3. Step 3: Cross multiply
   7,020.27x = 9,679.53 × 5,677.32
4. Step 4: Simplify right side
   7,020.27x = 54,953,717.27
5. Step 5: Solve for x
   x = 54,953,717.27/7,020.27
6. Step 6: Final answer
   x = 7,827.86