Finding the Fourth Proportional to 9,583.78, 13,225.53 and 5,391.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,583.78 : 13,225.53 = 5,391.94 : x
2. Step 2: Convert to fraction form
   9,583.78/13,225.53 = 5,391.94/x
3. Step 3: Cross multiply
   9,583.78x = 13,225.53 × 5,391.94
4. Step 4: Simplify right side
   9,583.78x = 71,311,264.23
5. Step 5: Solve for x
   x = 71,311,264.23/9,583.78
6. Step 6: Final answer
   x = 7,440.83