Finding the Fourth Proportional to 8,098.72, 12,145.90 and 3,418.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,098.72 : 12,145.90 = 3,418.76 : x
2. Step 2: Convert to fraction form
   8,098.72/12,145.90 = 3,418.76/x
3. Step 3: Cross multiply
   8,098.72x = 12,145.90 × 3,418.76
4. Step 4: Simplify right side
   8,098.72x = 41,523,917.08
5. Step 5: Solve for x
   x = 41,523,917.08/8,098.72
6. Step 6: Final answer
   x = 5,127.22