Finding the Fourth Proportional to 7,325.89, 10,109.71 and 3,968.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,325.89 : 10,109.71 = 3,968.78 : x
2. Step 2: Convert to fraction form
   7,325.89/10,109.71 = 3,968.78/x
3. Step 3: Cross multiply
   7,325.89x = 10,109.71 × 3,968.78
4. Step 4: Simplify right side
   7,325.89x = 40,123,268.78
5. Step 5: Solve for x
   x = 40,123,268.78/7,325.89
6. Step 6: Final answer
   x = 5,476.92