Finding the Fourth Proportional to 8,790.10, 13,185.27 and 3,241.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,790.10 : 13,185.27 = 3,241.30 : x
2. Step 2: Convert to fraction form
   8,790.10/13,185.27 = 3,241.30/x
3. Step 3: Cross multiply
   8,790.10x = 13,185.27 × 3,241.30
4. Step 4: Simplify right side
   8,790.10x = 42,737,415.65
5. Step 5: Solve for x
   x = 42,737,415.65/8,790.10
6. Step 6: Final answer
   x = 4,861.99