Finding the Fourth Proportional to 7,908.16, 10,913.52 and 5,424.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,908.16 : 10,913.52 = 5,424.16 : x
2. Step 2: Convert to fraction form
   7,908.16/10,913.52 = 5,424.16/x
3. Step 3: Cross multiply
   7,908.16x = 10,913.52 × 5,424.16
4. Step 4: Simplify right side
   7,908.16x = 59,196,678.64
5. Step 5: Solve for x
   x = 59,196,678.64/7,908.16
6. Step 6: Final answer
   x = 7,485.52