Finding the Fourth Proportional to 11,087.99, 15,296.12 and 7,504.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.99 : 15,296.12 = 7,504.20 : x
2. Step 2: Convert to fraction form
   11,087.99/15,296.12 = 7,504.20/x
3. Step 3: Cross multiply
   11,087.99x = 15,296.12 × 7,504.20
4. Step 4: Simplify right side
   11,087.99x = 114,785,143.70
5. Step 5: Solve for x
   x = 114,785,143.70/11,087.99
6. Step 6: Final answer
   x = 10,352.20