Finding the Fourth Proportional to 9,583.06, 13,223.91 and 5,390.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,583.06 : 13,223.91 = 5,390.50 : x
2. Step 2: Convert to fraction form
   9,583.06/13,223.91 = 5,390.50/x
3. Step 3: Cross multiply
   9,583.06x = 13,223.91 × 5,390.50
4. Step 4: Simplify right side
   9,583.06x = 71,283,486.86
5. Step 5: Solve for x
   x = 71,283,486.86/9,583.06
6. Step 6: Final answer
   x = 7,438.49