Finding the Fourth Proportional to 7,004.64, 9,663.12 and 5,216.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,004.64 : 9,663.12 = 5,216.16 : x
2. Step 2: Convert to fraction form
   7,004.64/9,663.12 = 5,216.16/x
3. Step 3: Cross multiply
   7,004.64x = 9,663.12 × 5,216.16
4. Step 4: Simplify right side
   7,004.64x = 50,404,380.02
5. Step 5: Solve for x
   x = 50,404,380.02/7,004.64
6. Step 6: Final answer
   x = 7,195.86