Finding the Fourth Proportional to 9,488.60, 13,103.75 and 7,826.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,488.60 : 13,103.75 = 7,826.48 : x
2. Step 2: Convert to fraction form
   9,488.60/13,103.75 = 7,826.48/x
3. Step 3: Cross multiply
   9,488.60x = 13,103.75 × 7,826.48
4. Step 4: Simplify right side
   9,488.60x = 102,556,237.30
5. Step 5: Solve for x
   x = 102,556,237.30/9,488.60
6. Step 6: Final answer
   x = 10,808.36