Finding the Fourth Proportional to 9,086.64, 13,618.62 and 3,886.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.64 : 13,618.62 = 3,886.44 : x
2. Step 2: Convert to fraction form
   9,086.64/13,618.62 = 3,886.44/x
3. Step 3: Cross multiply
   9,086.64x = 13,618.62 × 3,886.44
4. Step 4: Simplify right side
   9,086.64x = 52,927,949.51
5. Step 5: Solve for x
   x = 52,927,949.51/9,086.64
6. Step 6: Final answer
   x = 5,824.81