Finding the Fourth Proportional to 7,912.80, 10,927.71 and 5,550.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,912.80 : 10,927.71 = 5,550.84 : x
2. Step 2: Convert to fraction form
   7,912.80/10,927.71 = 5,550.84/x
3. Step 3: Cross multiply
   7,912.80x = 10,927.71 × 5,550.84
4. Step 4: Simplify right side
   7,912.80x = 60,657,969.78
5. Step 5: Solve for x
   x = 60,657,969.78/7,912.80
6. Step 6: Final answer
   x = 7,665.80