Finding the Fourth Proportional to 9,511.23, 14,262.72 and 7,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,511.23 : 14,262.72 = 7,321.50 : x
2. Step 2: Convert to fraction form
   9,511.23/14,262.72 = 7,321.50/x
3. Step 3: Cross multiply
   9,511.23x = 14,262.72 × 7,321.50
4. Step 4: Simplify right side
   9,511.23x = 104,424,504.48
5. Step 5: Solve for x
   x = 104,424,504.48/9,511.23
6. Step 6: Final answer
   x = 10,979.07