Finding the Fourth Proportional to 7,499.54, 11,243.23 and 3,120.27

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.54 : 11,243.23 = 3,120.27 : x
2. Step 2: Convert to fraction form
   7,499.54/11,243.23 = 3,120.27/x
3. Step 3: Cross multiply
   7,499.54x = 11,243.23 × 3,120.27
4. Step 4: Simplify right side
   7,499.54x = 35,081,935.33
5. Step 5: Solve for x
   x = 35,081,935.33/7,499.54
6. Step 6: Final answer
   x = 4,677.88