Finding the Fourth Proportional to 9,723.31, 13,419.47 and 5,475.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,723.31 : 13,419.47 = 5,475.22 : x
2. Step 2: Convert to fraction form
   9,723.31/13,419.47 = 5,475.22/x
3. Step 3: Cross multiply
   9,723.31x = 13,419.47 × 5,475.22
4. Step 4: Simplify right side
   9,723.31x = 73,474,530.67
5. Step 5: Solve for x
   x = 73,474,530.67/9,723.31
6. Step 6: Final answer
   x = 7,556.54