Finding the Fourth Proportional to 10,641.75, 15,965.67 and 3,623.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,641.75 : 15,965.67 = 3,623.31 : x
2. Step 2: Convert to fraction form
   10,641.75/15,965.67 = 3,623.31/x
3. Step 3: Cross multiply
   10,641.75x = 15,965.67 × 3,623.31
4. Step 4: Simplify right side
   10,641.75x = 57,848,571.77
5. Step 5: Solve for x
   x = 57,848,571.77/10,641.75
6. Step 6: Final answer
   x = 5,436.00