Finding the Fourth Proportional to 11,023.90, 15,204.64 and 7,665.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,023.90 : 15,204.64 = 7,665.03 : x
2. Step 2: Convert to fraction form
   11,023.90/15,204.64 = 7,665.03/x
3. Step 3: Cross multiply
   11,023.90x = 15,204.64 × 7,665.03
4. Step 4: Simplify right side
   11,023.90x = 116,543,945.72
5. Step 5: Solve for x
   x = 116,543,945.72/11,023.90
6. Step 6: Final answer
   x = 10,571.94