Finding the Fourth Proportional to 9,606.18, 13,256.55 and 5,357.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,606.18 : 13,256.55 = 5,357.64 : x
2. Step 2: Convert to fraction form
   9,606.18/13,256.55 = 5,357.64/x
3. Step 3: Cross multiply
   9,606.18x = 13,256.55 × 5,357.64
4. Step 4: Simplify right side
   9,606.18x = 71,023,822.54
5. Step 5: Solve for x
   x = 71,023,822.54/9,606.18
6. Step 6: Final answer
   x = 7,393.56