Finding the Fourth Proportional to 9,654.69, 13,321.93 and 5,405.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,654.69 : 13,321.93 = 5,405.94 : x
2. Step 2: Convert to fraction form
   9,654.69/13,321.93 = 5,405.94/x
3. Step 3: Cross multiply
   9,654.69x = 13,321.93 × 5,405.94
4. Step 4: Simplify right side
   9,654.69x = 72,017,460.62
5. Step 5: Solve for x
   x = 72,017,460.62/9,654.69
6. Step 6: Final answer
   x = 7,459.32