Finding the Fourth Proportional to 6,651.50, 9,178.71 and 3,666.77

Step by Step Solution

1. Step 1: Write the proportion equation
   6,651.50 : 9,178.71 = 3,666.77 : x
2. Step 2: Convert to fraction form
   6,651.50/9,178.71 = 3,666.77/x
3. Step 3: Cross multiply
   6,651.50x = 9,178.71 × 3,666.77
4. Step 4: Simplify right side
   6,651.50x = 33,656,172.57
5. Step 5: Solve for x
   x = 33,656,172.57/6,651.50
6. Step 6: Final answer
   x = 5,059.94