Finding the Fourth Proportional to 11,022.72, 16,556.69 and 7,280.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,022.72 : 16,556.69 = 7,280.01 : x
2. Step 2: Convert to fraction form
   11,022.72/16,556.69 = 7,280.01/x
3. Step 3: Cross multiply
   11,022.72x = 16,556.69 × 7,280.01
4. Step 4: Simplify right side
   11,022.72x = 120,532,868.77
5. Step 5: Solve for x
   x = 120,532,868.77/11,022.72
6. Step 6: Final answer
   x = 10,934.95