Finding the Fourth Proportional to 9,447.18, 13,038.42 and 5,469.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,447.18 : 13,038.42 = 5,469.54 : x
2. Step 2: Convert to fraction form
   9,447.18/13,038.42 = 5,469.54/x
3. Step 3: Cross multiply
   9,447.18x = 13,038.42 × 5,469.54
4. Step 4: Simplify right side
   9,447.18x = 71,314,159.73
5. Step 5: Solve for x
   x = 71,314,159.73/9,447.18
6. Step 6: Final answer
   x = 7,548.72