Finding the Fourth Proportional to 7,128.14, 10,694.38 and 5,052.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,128.14 : 10,694.38 = 5,052.16 : x
2. Step 2: Convert to fraction form
   7,128.14/10,694.38 = 5,052.16/x
3. Step 3: Cross multiply
   7,128.14x = 10,694.38 × 5,052.16
4. Step 4: Simplify right side
   7,128.14x = 54,029,718.86
5. Step 5: Solve for x
   x = 54,029,718.86/7,128.14
6. Step 6: Final answer
   x = 7,579.78