Finding the Fourth Proportional to 7,128.32, 10,694.61 and 5,052.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,128.32 : 10,694.61 = 5,052.31 : x
2. Step 2: Convert to fraction form
   7,128.32/10,694.61 = 5,052.31/x
3. Step 3: Cross multiply
   7,128.32x = 10,694.61 × 5,052.31
4. Step 4: Simplify right side
   7,128.32x = 54,032,458.31
5. Step 5: Solve for x
   x = 54,032,458.31/7,128.32
6. Step 6: Final answer
   x = 7,579.98