Finding the Fourth Proportional to 3,303.90, 4,554.72 and 3,216.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,303.90 : 4,554.72 = 3,216.42 : x
2. Step 2: Convert to fraction form
   3,303.90/4,554.72 = 3,216.42/x
3. Step 3: Cross multiply
   3,303.90x = 4,554.72 × 3,216.42
4. Step 4: Simplify right side
   3,303.90x = 14,649,892.50
5. Step 5: Solve for x
   x = 14,649,892.50/3,303.90
6. Step 6: Final answer
   x = 4,434.12