Finding the Fourth Proportional to 7,153.11, 9,870.39 and 4,168.53

Step by Step Solution

1. Step 1: Write the proportion equation
   7,153.11 : 9,870.39 = 4,168.53 : x
2. Step 2: Convert to fraction form
   7,153.11/9,870.39 = 4,168.53/x
3. Step 3: Cross multiply
   7,153.11x = 9,870.39 × 4,168.53
4. Step 4: Simplify right side
   7,153.11x = 41,145,016.83
5. Step 5: Solve for x
   x = 41,145,016.83/7,153.11
6. Step 6: Final answer
   x = 5,752.05