Finding the Fourth Proportional to 8,498.55, 12,742.88 and 3,298.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,498.55 : 12,742.88 = 3,298.35 : x
2. Step 2: Convert to fraction form
   8,498.55/12,742.88 = 3,298.35/x
3. Step 3: Cross multiply
   8,498.55x = 12,742.88 × 3,298.35
4. Step 4: Simplify right side
   8,498.55x = 42,030,461.76
5. Step 5: Solve for x
   x = 42,030,461.76/8,498.55
6. Step 6: Final answer
   x = 4,945.60