Finding the Fourth Proportional to 7,250.35, 10,879.71 and 3,918.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,250.35 : 10,879.71 = 3,918.61 : x
2. Step 2: Convert to fraction form
   7,250.35/10,879.71 = 3,918.61/x
3. Step 3: Cross multiply
   7,250.35x = 10,879.71 × 3,918.61
4. Step 4: Simplify right side
   7,250.35x = 42,633,266.41
5. Step 5: Solve for x
   x = 42,633,266.41/7,250.35
6. Step 6: Final answer
   x = 5,880.17