Finding the Fourth Proportional to 6,380.46, 8,802.18 and 4,253.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,380.46 : 8,802.18 = 4,253.91 : x
2. Step 2: Convert to fraction form
   6,380.46/8,802.18 = 4,253.91/x
3. Step 3: Cross multiply
   6,380.46x = 8,802.18 × 4,253.91
4. Step 4: Simplify right side
   6,380.46x = 37,443,681.52
5. Step 5: Solve for x
   x = 37,443,681.52/6,380.46
6. Step 6: Final answer
   x = 5,868.49