Finding the Fourth Proportional to 6,880.20, 9,495.72 and 5,549.77

Step by Step Solution

1. Step 1: Write the proportion equation
   6,880.20 : 9,495.72 = 5,549.77 : x
2. Step 2: Convert to fraction form
   6,880.20/9,495.72 = 5,549.77/x
3. Step 3: Cross multiply
   6,880.20x = 9,495.72 × 5,549.77
4. Step 4: Simplify right side
   6,880.20x = 52,699,061.98
5. Step 5: Solve for x
   x = 52,699,061.98/6,880.20
6. Step 6: Final answer
   x = 7,659.53