Finding the Fourth Proportional to 6,103.28, 8,422.50 and 3,308.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,103.28 : 8,422.50 = 3,308.78 : x
2. Step 2: Convert to fraction form
   6,103.28/8,422.50 = 3,308.78/x
3. Step 3: Cross multiply
   6,103.28x = 8,422.50 × 3,308.78
4. Step 4: Simplify right side
   6,103.28x = 27,868,199.55
5. Step 5: Solve for x
   x = 27,868,199.55/6,103.28
6. Step 6: Final answer
   x = 4,566.10