Finding the Fourth Proportional to 6,379.18, 8,801.10 and 3,987.52

Step by Step Solution

1. Step 1: Write the proportion equation
   6,379.18 : 8,801.10 = 3,987.52 : x
2. Step 2: Convert to fraction form
   6,379.18/8,801.10 = 3,987.52/x
3. Step 3: Cross multiply
   6,379.18x = 8,801.10 × 3,987.52
4. Step 4: Simplify right side
   6,379.18x = 35,094,562.27
5. Step 5: Solve for x
   x = 35,094,562.27/6,379.18
6. Step 6: Final answer
   x = 5,501.42