Finding the Fourth Proportional to 9,688.41, 13,369.58 and 5,440.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,688.41 : 13,369.58 = 5,440.16 : x
2. Step 2: Convert to fraction form
   9,688.41/13,369.58 = 5,440.16/x
3. Step 3: Cross multiply
   9,688.41x = 13,369.58 × 5,440.16
4. Step 4: Simplify right side
   9,688.41x = 72,732,661.83
5. Step 5: Solve for x
   x = 72,732,661.83/9,688.41
6. Step 6: Final answer
   x = 7,507.18