Finding the Fourth Proportional to 6,404.76, 8,839.50 and 3,751.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404.76 : 8,839.50 = 3,751.80 : x
2. Step 2: Convert to fraction form
   6,404.76/8,839.50 = 3,751.80/x
3. Step 3: Cross multiply
   6,404.76x = 8,839.50 × 3,751.80
4. Step 4: Simplify right side
   6,404.76x = 33,164,036.10
5. Step 5: Solve for x
   x = 33,164,036.10/6,404.76
6. Step 6: Final answer
   x = 5,178.03