Finding the Fourth Proportional to 7,952.28, 10,972.72 and 5,156.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,952.28 : 10,972.72 = 5,156.16 : x
2. Step 2: Convert to fraction form
   7,952.28/10,972.72 = 5,156.16/x
3. Step 3: Cross multiply
   7,952.28x = 10,972.72 × 5,156.16
4. Step 4: Simplify right side
   7,952.28x = 56,577,036.25
5. Step 5: Solve for x
   x = 56,577,036.25/7,952.28
6. Step 6: Final answer
   x = 7,114.57