Finding the Fourth Proportional to 6,451.55, 8,902.43 and 3,618.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,451.55 : 8,902.43 = 3,618.34 : x
2. Step 2: Convert to fraction form
   6,451.55/8,902.43 = 3,618.34/x
3. Step 3: Cross multiply
   6,451.55x = 8,902.43 × 3,618.34
4. Step 4: Simplify right side
   6,451.55x = 32,211,978.22
5. Step 5: Solve for x
   x = 32,211,978.22/6,451.55
6. Step 6: Final answer
   x = 4,992.90