Finding the Fourth Proportional to 9,686.17, 13,366.38 and 5,494.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,686.17 : 13,366.38 = 5,494.42 : x
2. Step 2: Convert to fraction form
   9,686.17/13,366.38 = 5,494.42/x
3. Step 3: Cross multiply
   9,686.17x = 13,366.38 × 5,494.42
4. Step 4: Simplify right side
   9,686.17x = 73,440,505.60
5. Step 5: Solve for x
   x = 73,440,505.60/9,686.17
6. Step 6: Final answer
   x = 7,582.00