Finding the Fourth Proportional to 6,364.25, 8,780.61 and 3,847.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,364.25 : 8,780.61 = 3,847.10 : x
2. Step 2: Convert to fraction form
   6,364.25/8,780.61 = 3,847.10/x
3. Step 3: Cross multiply
   6,364.25x = 8,780.61 × 3,847.10
4. Step 4: Simplify right side
   6,364.25x = 33,779,884.73
5. Step 5: Solve for x
   x = 33,779,884.73/6,364.25
6. Step 6: Final answer
   x = 5,307.76