Finding the Fourth Proportional to 6,446.53, 8,896.76 and 3,613.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,446.53 : 8,896.76 = 3,613.86 : x
2. Step 2: Convert to fraction form
   6,446.53/8,896.76 = 3,613.86/x
3. Step 3: Cross multiply
   6,446.53x = 8,896.76 × 3,613.86
4. Step 4: Simplify right side
   6,446.53x = 32,151,627.02
5. Step 5: Solve for x
   x = 32,151,627.02/6,446.53
6. Step 6: Final answer
   x = 4,987.43