Finding the Fourth Proportional to 8,178.40, 12,264.50 and 3,495.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,178.40 : 12,264.50 = 3,495.48 : x
2. Step 2: Convert to fraction form
   8,178.40/12,264.50 = 3,495.48/x
3. Step 3: Cross multiply
   8,178.40x = 12,264.50 × 3,495.48
4. Step 4: Simplify right side
   8,178.40x = 42,870,235.66
5. Step 5: Solve for x
   x = 42,870,235.66/8,178.40
6. Step 6: Final answer
   x = 5,241.89