Finding the Fourth Proportional to 8,181.66, 12,270.27 and 3,499.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,181.66 : 12,270.27 = 3,499.35 : x
2. Step 2: Convert to fraction form
   8,181.66/12,270.27 = 3,499.35/x
3. Step 3: Cross multiply
   8,181.66x = 12,270.27 × 3,499.35
4. Step 4: Simplify right side
   8,181.66x = 42,937,969.32
5. Step 5: Solve for x
   x = 42,937,969.32/8,181.66
6. Step 6: Final answer
   x = 5,248.08