Finding the Fourth Proportional to 11,706.54, 16,150.50 and 7,222.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,706.54 : 16,150.50 = 7,222.50 : x
2. Step 2: Convert to fraction form
   11,706.54/16,150.50 = 7,222.50/x
3. Step 3: Cross multiply
   11,706.54x = 16,150.50 × 7,222.50
4. Step 4: Simplify right side
   11,706.54x = 116,646,986.25
5. Step 5: Solve for x
   x = 116,646,986.25/11,706.54
6. Step 6: Final answer
   x = 9,964.26