Finding the Fourth Proportional to 6,275.18, 8,659.40 and 3,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,275.18 : 8,659.40 = 3,480.50 : x
2. Step 2: Convert to fraction form
   6,275.18/8,659.40 = 3,480.50/x
3. Step 3: Cross multiply
   6,275.18x = 8,659.40 × 3,480.50
4. Step 4: Simplify right side
   6,275.18x = 30,139,041.70
5. Step 5: Solve for x
   x = 30,139,041.70/6,275.18
6. Step 6: Final answer
   x = 4,802.90