Finding the Fourth Proportional to 6,180.07, 8,528.72 and 3,385.57

Step by Step Solution

1. Step 1: Write the proportion equation
   6,180.07 : 8,528.72 = 3,385.57 : x
2. Step 2: Convert to fraction form
   6,180.07/8,528.72 = 3,385.57/x
3. Step 3: Cross multiply
   6,180.07x = 8,528.72 × 3,385.57
4. Step 4: Simplify right side
   6,180.07x = 28,874,578.57
5. Step 5: Solve for x
   x = 28,874,578.57/6,180.07
6. Step 6: Final answer
   x = 4,672.21