Finding the Fourth Proportional to 9,127.98, 12,596.70 and 5,353.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.98 : 12,596.70 = 5,353.38 : x
2. Step 2: Convert to fraction form
   9,127.98/12,596.70 = 5,353.38/x
3. Step 3: Cross multiply
   9,127.98x = 12,596.70 × 5,353.38
4. Step 4: Simplify right side
   9,127.98x = 67,434,921.85
5. Step 5: Solve for x
   x = 67,434,921.85/9,127.98
6. Step 6: Final answer
   x = 7,387.72