Finding the Fourth Proportional to 9,127.28, 12,595.82 and 5,147.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.28 : 12,595.82 = 5,147.60 : x
2. Step 2: Convert to fraction form
   9,127.28/12,595.82 = 5,147.60/x
3. Step 3: Cross multiply
   9,127.28x = 12,595.82 × 5,147.60
4. Step 4: Simplify right side
   9,127.28x = 64,838,243.03
5. Step 5: Solve for x
   x = 64,838,243.03/9,127.28
6. Step 6: Final answer
   x = 7,103.79