Finding the Fourth Proportional to 9,127.35, 12,603.20 and 5,775.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.35 : 12,603.20 = 5,775.57 : x
2. Step 2: Convert to fraction form
   9,127.35/12,603.20 = 5,775.57/x
3. Step 3: Cross multiply
   9,127.35x = 12,603.20 × 5,775.57
4. Step 4: Simplify right side
   9,127.35x = 72,790,634.95
5. Step 5: Solve for x
   x = 72,790,634.95/9,127.35
6. Step 6: Final answer
   x = 7,975.00