Finding the Fourth Proportional to 8,538.87, 12,808.98 and 3,276.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,538.87 : 12,808.98 = 3,276.42 : x
2. Step 2: Convert to fraction form
   8,538.87/12,808.98 = 3,276.42/x
3. Step 3: Cross multiply
   8,538.87x = 12,808.98 × 3,276.42
4. Step 4: Simplify right side
   8,538.87x = 41,967,598.25
5. Step 5: Solve for x
   x = 41,967,598.25/8,538.87
6. Step 6: Final answer
   x = 4,914.89