Finding the Fourth Proportional to 3,550.50, 4,900.91 and 2,153.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,550.50 : 4,900.91 = 2,153.25 : x
2. Step 2: Convert to fraction form
   3,550.50/4,900.91 = 2,153.25/x
3. Step 3: Cross multiply
   3,550.50x = 4,900.91 × 2,153.25
4. Step 4: Simplify right side
   3,550.50x = 10,552,873.69
5. Step 5: Solve for x
   x = 10,552,873.69/3,550.50
6. Step 6: Final answer
   x = 2,972.22