Finding the Fourth Proportional to 21,960.88, 32,944.50 and 7,166.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,960.88 : 32,944.50 = 7,166.72 : x
2. Step 2: Convert to fraction form
   21,960.88/32,944.50 = 7,166.72/x
3. Step 3: Cross multiply
   21,960.88x = 32,944.50 × 7,166.72
4. Step 4: Simplify right side
   21,960.88x = 236,104,007.04
5. Step 5: Solve for x
   x = 236,104,007.04/21,960.88
6. Step 6: Final answer
   x = 10,751.12