Finding the Fourth Proportional to 9,836.10, 13,558.02 and 6,648.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,836.10 : 13,558.02 = 6,648.42 : x
2. Step 2: Convert to fraction form
   9,836.10/13,558.02 = 6,648.42/x
3. Step 3: Cross multiply
   9,836.10x = 13,558.02 × 6,648.42
4. Step 4: Simplify right side
   9,836.10x = 90,139,411.33
5. Step 5: Solve for x
   x = 90,139,411.33/9,836.10
6. Step 6: Final answer
   x = 9,164.14