Finding the Fourth Proportional to 6,222.75, 8,587.40 and 3,570.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,222.75 : 8,587.40 = 3,570.05 : x
2. Step 2: Convert to fraction form
   6,222.75/8,587.40 = 3,570.05/x
3. Step 3: Cross multiply
   6,222.75x = 8,587.40 × 3,570.05
4. Step 4: Simplify right side
   6,222.75x = 30,657,386.58
5. Step 5: Solve for x
   x = 30,657,386.58/6,222.75
6. Step 6: Final answer
   x = 4,926.66