Finding the Fourth Proportional to 6,419.50, 8,858.91 and 3,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,419.50 : 8,858.91 = 3,475.50 : x
2. Step 2: Convert to fraction form
   6,419.50/8,858.91 = 3,475.50/x
3. Step 3: Cross multiply
   6,419.50x = 8,858.91 × 3,475.50
4. Step 4: Simplify right side
   6,419.50x = 30,789,141.71
5. Step 5: Solve for x
   x = 30,789,141.71/6,419.50
6. Step 6: Final answer
   x = 4,796.19