Finding the Fourth Proportional to 6,630.76, 9,150.25 and 3,646.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,630.76 : 9,150.25 = 3,646.31 : x
2. Step 2: Convert to fraction form
   6,630.76/9,150.25 = 3,646.31/x
3. Step 3: Cross multiply
   6,630.76x = 9,150.25 × 3,646.31
4. Step 4: Simplify right side
   6,630.76x = 33,364,625.78
5. Step 5: Solve for x
   x = 33,364,625.78/6,630.76
6. Step 6: Final answer
   x = 5,031.79