Finding the Fourth Proportional to 9,605.31, 13,256.46 and 5,357.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,605.31 : 13,256.46 = 5,357.04 : x
2. Step 2: Convert to fraction form
   9,605.31/13,256.46 = 5,357.04/x
3. Step 3: Cross multiply
   9,605.31x = 13,256.46 × 5,357.04
4. Step 4: Simplify right side
   9,605.31x = 71,015,386.48
5. Step 5: Solve for x
   x = 71,015,386.48/9,605.31
6. Step 6: Final answer
   x = 7,393.35