Finding the Fourth Proportional to 9,654.04, 13,321.44 and 5,405.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,654.04 : 13,321.44 = 5,405.34 : x
2. Step 2: Convert to fraction form
   9,654.04/13,321.44 = 5,405.34/x
3. Step 3: Cross multiply
   9,654.04x = 13,321.44 × 5,405.34
4. Step 4: Simplify right side
   9,654.04x = 72,006,912.49
5. Step 5: Solve for x
   x = 72,006,912.49/9,654.04
6. Step 6: Final answer
   x = 7,458.73