Finding the Fourth Proportional to 11,499.95, 15,867.11 and 7,022.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,499.95 : 15,867.11 = 7,022.07 : x
2. Step 2: Convert to fraction form
   11,499.95/15,867.11 = 7,022.07/x
3. Step 3: Cross multiply
   11,499.95x = 15,867.11 × 7,022.07
4. Step 4: Simplify right side
   11,499.95x = 111,419,957.12
5. Step 5: Solve for x
   x = 111,419,957.12/11,499.95
6. Step 6: Final answer
   x = 9,688.73