Finding the Fourth Proportional to 8,560.86, 12,841.89 and 3,298.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,560.86 : 12,841.89 = 3,298.38 : x
2. Step 2: Convert to fraction form
   8,560.86/12,841.89 = 3,298.38/x
3. Step 3: Cross multiply
   8,560.86x = 12,841.89 × 3,298.38
4. Step 4: Simplify right side
   8,560.86x = 42,357,433.14
5. Step 5: Solve for x
   x = 42,357,433.14/8,560.86
6. Step 6: Final answer
   x = 4,947.80