Finding the Fourth Proportional to 6,374.69, 8,801.31 and 3,988.27

Step by Step Solution

1. Step 1: Write the proportion equation
   6,374.69 : 8,801.31 = 3,988.27 : x
2. Step 2: Convert to fraction form
   6,374.69/8,801.31 = 3,988.27/x
3. Step 3: Cross multiply
   6,374.69x = 8,801.31 × 3,988.27
4. Step 4: Simplify right side
   6,374.69x = 35,102,000.63
5. Step 5: Solve for x
   x = 35,102,000.63/6,374.69
6. Step 6: Final answer
   x = 5,506.46