Finding the Fourth Proportional to 6,440.18, 8,888.27 and 3,787.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,440.18 : 8,888.27 = 3,787.83 : x
2. Step 2: Convert to fraction form
   6,440.18/8,888.27 = 3,787.83/x
3. Step 3: Cross multiply
   6,440.18x = 8,888.27 × 3,787.83
4. Step 4: Simplify right side
   6,440.18x = 33,667,236.81
5. Step 5: Solve for x
   x = 33,667,236.81/6,440.18
6. Step 6: Final answer
   x = 5,227.69