Finding the Fourth Proportional to 10,862.88, 16,289.46 and 7,577.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,862.88 : 16,289.46 = 7,577.52 : x
2. Step 2: Convert to fraction form
   10,862.88/16,289.46 = 7,577.52/x
3. Step 3: Cross multiply
   10,862.88x = 16,289.46 × 7,577.52
4. Step 4: Simplify right side
   10,862.88x = 123,433,708.94
5. Step 5: Solve for x
   x = 123,433,708.94/10,862.88
6. Step 6: Final answer
   x = 11,362.89