Finding the Fourth Proportional to 9,609.94, 13,261.89 and 5,361.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,609.94 : 13,261.89 = 5,361.22 : x
2. Step 2: Convert to fraction form
   9,609.94/13,261.89 = 5,361.22/x
3. Step 3: Cross multiply
   9,609.94x = 13,261.89 × 5,361.22
4. Step 4: Simplify right side
   9,609.94x = 71,099,909.91
5. Step 5: Solve for x
   x = 71,099,909.91/9,609.94
6. Step 6: Final answer
   x = 7,398.58