Finding the Fourth Proportional to 5,450.52, 8,121.62 and 5,186.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,450.52 : 8,121.62 = 5,186.04 : x
2. Step 2: Convert to fraction form
   5,450.52/8,121.62 = 5,186.04/x
3. Step 3: Cross multiply
   5,450.52x = 8,121.62 × 5,186.04
4. Step 4: Simplify right side
   5,450.52x = 42,119,046.18
5. Step 5: Solve for x
   x = 42,119,046.18/5,450.52
6. Step 6: Final answer
   x = 7,727.53