Finding the Fourth Proportional to 6,225.36, 8,590.72 and 3,570.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,225.36 : 8,590.72 = 3,570.80 : x
2. Step 2: Convert to fraction form
   6,225.36/8,590.72 = 3,570.80/x
3. Step 3: Cross multiply
   6,225.36x = 8,590.72 × 3,570.80
4. Step 4: Simplify right side
   6,225.36x = 30,675,742.98
5. Step 5: Solve for x
   x = 30,675,742.98/6,225.36
6. Step 6: Final answer
   x = 4,927.55