Finding the Fourth Proportional to 9,269.55, 12,791.82 and 5,077.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,269.55 : 12,791.82 = 5,077.80 : x
2. Step 2: Convert to fraction form
   9,269.55/12,791.82 = 5,077.80/x
3. Step 3: Cross multiply
   9,269.55x = 12,791.82 × 5,077.80
4. Step 4: Simplify right side
   9,269.55x = 64,954,303.60
5. Step 5: Solve for x
   x = 64,954,303.60/9,269.55
6. Step 6: Final answer
   x = 7,007.28