Finding the Fourth Proportional to 9,666.18, 13,339.27 and 5,474.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,666.18 : 13,339.27 = 5,474.16 : x
2. Step 2: Convert to fraction form
   9,666.18/13,339.27 = 5,474.16/x
3. Step 3: Cross multiply
   9,666.18x = 13,339.27 × 5,474.16
4. Step 4: Simplify right side
   9,666.18x = 73,021,298.26
5. Step 5: Solve for x
   x = 73,021,298.26/9,666.18
6. Step 6: Final answer
   x = 7,554.31