Finding the Fourth Proportional to 8,758.26, 13,142.39 and 3,210.84

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.26 : 13,142.39 = 3,210.84 : x
2. Step 2: Convert to fraction form
   8,758.26/13,142.39 = 3,210.84/x
3. Step 3: Cross multiply
   8,758.26x = 13,142.39 × 3,210.84
4. Step 4: Simplify right side
   8,758.26x = 42,198,095.45
5. Step 5: Solve for x
   x = 42,198,095.45/8,758.26
6. Step 6: Final answer
   x = 4,818.09