Finding the Fourth Proportional to 6,259.59, 8,638.24 and 3,427.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,259.59 : 8,638.24 = 3,427.15 : x
2. Step 2: Convert to fraction form
   6,259.59/8,638.24 = 3,427.15/x
3. Step 3: Cross multiply
   6,259.59x = 8,638.24 × 3,427.15
4. Step 4: Simplify right side
   6,259.59x = 29,604,499.53
5. Step 5: Solve for x
   x = 29,604,499.53/6,259.59
6. Step 6: Final answer
   x = 4,729.46