Finding the Fourth Proportional to 8,498.30, 12,742.50 and 3,298.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,498.30 : 12,742.50 = 3,298.10 : x
2. Step 2: Convert to fraction form
   8,498.30/12,742.50 = 3,298.10/x
3. Step 3: Cross multiply
   8,498.30x = 12,742.50 × 3,298.10
4. Step 4: Simplify right side
   8,498.30x = 42,026,039.25
5. Step 5: Solve for x
   x = 42,026,039.25/8,498.30
6. Step 6: Final answer
   x = 4,945.23