Finding the Fourth Proportional to 9,616.98, 13,271.67 and 5,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,616.98 : 13,271.67 = 5,425.50 : x
2. Step 2: Convert to fraction form
   9,616.98/13,271.67 = 5,425.50/x
3. Step 3: Cross multiply
   9,616.98x = 13,271.67 × 5,425.50
4. Step 4: Simplify right side
   9,616.98x = 72,005,445.59
5. Step 5: Solve for x
   x = 72,005,445.59/9,616.98
6. Step 6: Final answer
   x = 7,487.32