Finding the Fourth Proportional to 9,522.80, 13,139.90 and 5,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,522.80 : 13,139.90 = 5,983.50 : x
2. Step 2: Convert to fraction form
   9,522.80/13,139.90 = 5,983.50/x
3. Step 3: Cross multiply
   9,522.80x = 13,139.90 × 5,983.50
4. Step 4: Simplify right side
   9,522.80x = 78,622,561.73
5. Step 5: Solve for x
   x = 78,622,561.73/9,522.80
6. Step 6: Final answer
   x = 8,256.25