Finding the Fourth Proportional to 6,200.55, 8,553.90 and 5,493.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,200.55 : 8,553.90 = 5,493.12 : x
2. Step 2: Convert to fraction form
   6,200.55/8,553.90 = 5,493.12/x
3. Step 3: Cross multiply
   6,200.55x = 8,553.90 × 5,493.12
4. Step 4: Simplify right side
   6,200.55x = 46,987,587.69
5. Step 5: Solve for x
   x = 46,987,587.69/6,200.55
6. Step 6: Final answer
   x = 7,577.97