Finding the Fourth Proportional to 6,919.50, 10,386.55 and 3,225.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,919.50 : 10,386.55 = 3,225.30 : x
2. Step 2: Convert to fraction form
   6,919.50/10,386.55 = 3,225.30/x
3. Step 3: Cross multiply
   6,919.50x = 10,386.55 × 3,225.30
4. Step 4: Simplify right side
   6,919.50x = 33,499,704.80
5. Step 5: Solve for x
   x = 33,499,704.80/6,919.50
6. Step 6: Final answer
   x = 4,841.34