Finding the Fourth Proportional to 9,583.56, 13,225.41 and 5,391

Step by Step Solution

1. Step 1: Write the proportion equation
   9,583.56 : 13,225.41 = 5,391 : x
2. Step 2: Convert to fraction form
   9,583.56/13,225.41 = 5,391/x
3. Step 3: Cross multiply
   9,583.56x = 13,225.41 × 5,391
4. Step 4: Simplify right side
   9,583.56x = 71,298,185.31
5. Step 5: Solve for x
   x = 71,298,185.31/9,583.56
6. Step 6: Final answer
   x = 7,439.63