Finding the Fourth Proportional to 7,350.89, 10,140.80 and 4,205.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,350.89 : 10,140.80 = 4,205.25 : x
2. Step 2: Convert to fraction form
   7,350.89/10,140.80 = 4,205.25/x
3. Step 3: Cross multiply
   7,350.89x = 10,140.80 × 4,205.25
4. Step 4: Simplify right side
   7,350.89x = 42,644,578.17
5. Step 5: Solve for x
   x = 42,644,578.17/7,350.89
6. Step 6: Final answer
   x = 5,801.28